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TITLE 18. ENVIRONMENTAL QUALITY

CHAPTER 11. DEPARTMENT OF ENVIRONMENTAL QUALITY
WATER QUALITY STANDARDS


Supp. 08-4

ARTICLE 1. WATER QUALITY STANDARDS FOR SURFACE WATERS

Article 1, consisting of Appendices A through C, repealed April 24, 1996 (Supp. 96-2).

Article 1, consisting of Section R18-11-103, reserved effective April 24, 1996 (Supp. 96-2).

Article 1, consisting of Sections R18-11-105 and R18-11-106, and Appendices A and B, adopted April 24, 1996 (Supp. 96-2).

Article 1, consisting of Sections R18-11-101 and R18-11-102, R18-11-104, R18-11-107 through R18-11-109, R18-11-111 through R18-11-113, R18-11-115, R18-11-117 and R18-11-118, R18-11-120 and R18-11-121, amended effective April 24, 1996 (Supp. 96-2).

Article 1, consisting of Sections R18-11-101 through R18-11-121 and Appendices A through C, adopted effective February 18, 1992 (Supp. 92-1).

Article 1, consisting of Section R18-11-101, repealed effective February 18, 1992 (Supp. 92-1).

Article 1 consisting of Section R9-21-101 renumbered as Article 1, Section R18-11-101 (Supp. 87-3).

Section

R18-11-101. Definitions

R18-11-102. Applicability

R18-11-103. Repealed

R18-11-104. Designated Uses

R18-11-105. Tributaries; Designated Uses

R18-11-106. Net Ecological Benefit

R18-11-107. Antidegradation

R18-11-107.01. Antidegradation Criteria

R18-11-108. Narrative Water Quality Standards

R18-11-108.01. Narrative Biological Criteria for Wadeable, Perennial Streams

R18-11-108.02. Narrative Bottom Deposit Criteria for Wadeable, Perennial Streams

R18-11-108.03. Narrative Nutrient Criteria for Lakes and Reservoirs

R18-11-109. Numeric Water Quality Standards

R18-11-110. Salinity Standards for the Colorado River

R18-11-111. Analytical Methods

R18-11-112. Outstanding Arizona Waters

R18-11-113. Effluent-Dependent Waters

R18-11-114. Mixing Zones

R18-11-115. Site-Specific Standards

R18-11-116. Resource Management Agencies

R18-11-117. Canals and Urban Park Lakes

R18-11-118. Dams and Flood Control Structures

R18-11-119. Natural Background

R18-11-120. Enforcement

R18-11-121. Schedules of Compliance

R18-11-122. Variances

R18-11-123. Discharge Prohibitions

Appendix A. Numeric Water Quality Standards

Appendix B. Surface Waters and Designated Uses

Appendix C. Site-Specific Standards

ARTICLE 2. REPEALED

Article 2, consisting of Sections R18-11-201 through R18-11-205, adopted effective February 18, 1992 (Supp. 92-1).

Article 2, consisting of Sections R18-11-201 through R18-11-214 and Appendices A and B, repealed effective February 18, 1992 (Supp. 92-1).

Article 2 consisting of Sections R9-21-201 through R9-21-214 and Appendices A and B renumbered as Article 2, Sections R18-11-201 through R18-11-214 and Appendices A and B (Supp. 87-3).

ARTICLE 3. RECLAIMED WATER QUALITY STANDARDS

Article 3, consisting of Sections R18-11-301 through R18-11-309 and Table A, adopted by final rulemaking at 7 A.A.R. 870, effective January 22, 2001 (Supp. 01-1).

Article 3 heading repealed effective April 24, 1996 (Supp. 96-2).

Article 3, consisting of Sections R18-11-301 through R18-11-304 repealed effective February 18, 1992 (Supp. 92-1).

Article 3 consisting of Sections R9-21-301 through R9-21-304 renumbered as Article 3, Sections R18-11-301 through R18-11-304 (Supp. 87-3).

Section

R18-11-301. Definitions

R18-11-302. Applicability

R18-11-303. Class A+ Reclaimed Water

R18-11-304. Class A Reclaimed Water

R18-11-305. Class B+ Reclaimed Water

R18-11-306. Class B Reclaimed Water

R18-11-307. Class C Reclaimed Water

R18-11-308. Industrial Reuse

R18-11-309. Reclaimed Water Quality Standards for an Unlisted Type of Direct Reuse

Table A. Minimum Reclaimed Water Quality Requirements for Direct Reuse

ARTICLE 4. AQUIFER WATER QUALITY STANDARDS

Section

R18-11-401. Definitions

R18-11-402. Repealed

R18-11-403. Analytical Methods

R18-11-404. Laboratories

R18-11-405. Narrative Aquifer Water Quality Standards

R18-11-406. Numeric Aquifer Water Quality Standards: Drinking Water Protected Use

R18-11-407. Aquifer Water Quality Standards in Reclassified Aquifers

R18-11-408. Petition for Adoption of a Numeric Aquifer Water Quality Standard

Appendix 1. Repealed

Appendix 2. Repealed

Appendix 3. Repealed

Appendix 4. Repealed

Appendix 5. Repealed

Appendix 6. Repealed

Appendix 7. Repealed

ARTICLE 5. AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION

New Article 5 consisting of Sections R18-11-501 through R18-11-504 and Section R18-11-506 adopted effective October 22, 1987.

Section

R18-11-501. Definitions

R18-11-502. Aquifer boundaries

R18-11-503. Petition for reclassification

R18-11-504. Agency action on petition

R18-11-505. Public participation

R18-11-506. Rescission of reclassification

ARTICLE 6. IMPAIRED WATER IDENTIFICATION

Article 6, consisting of Sections R18-11-601 through R18-11-606, made by final rulemaking at 8 A.A.R. 3380, effective July 12, 2002 (Supp. 02-3).

Section

R18-11-601. Definitions

R18-11-602. Credible Data

R18-11-603. General Data Interpretation Requirements

R18-11-604. Types of Surface Waters Placed on the Planning List and 303(d) List

R18-11-605. Evaluating a Surface Water or Segment for Listing and Delisting

R18-11-606. TMDL Priority Criteria for 303(d) Listed Surface Waters or Segments

ARTICLE 1. WATER QUALITY STANDARDS FOR SURFACE WATERS

R18-11-101. Definitions

The following terms apply to this Article:

1. "Acute toxicity" means toxicity involving a stimulus severe enough to induce a rapid response. In aquatic toxicity tests, an effect observed in 96 hours or less is considered acute.

2. "Agricultural irrigation (AgI)" means the use of a surface water for crop irrigation.

3. "Agricultural livestock watering (AgL)" means the use of a surface water as a water supply for consumption by livestock.

4. "Annual mean" is the arithmetic mean of monthly values determined over a consecutive 12-month period, provided that monthly values are determined for at least three months. A monthly value is the arithmetic mean of all values determined in a calendar month.

5. "Aquatic and wildlife (cold water) (A&Wc)" means the use of a surface water by animals, plants, or other cold-water organisms, generally occurring at an elevation greater than 5000 feet, for habitation, growth, or propagation.

6. "Aquatic and wildlife (effluent-dependent water) (A&Wedw)" means the use of an effluent-dependent water by animals, plants, or other organisms for habitation, growth, or propagation.

7. "Aquatic and wildlife (ephemeral) (A&We)" means the use of an ephemeral water by animals, plants, or other organisms, excluding fish, for habitation, growth, or propagation.

8. "Aquatic and wildlife (warm water) (A&Ww)" means the use of a surface water by animals, plants, or other warm-water organisms, generally occurring at an elevation less than 5000 feet, for habitation, growth, or propagation.

9. "Arizona Pollutant Discharge Elimination System (AZPDES)" means the point source discharge permitting program established under 18 A.A.C. 9, Article 9.

10. "Assimilative capacity" means the difference between the baseline water quality concentration for a pollutant and the most stringent applicable water quality criterion for that pollutant.

11. "Clean Water Act" means the Federal Water Pollution Control Act [33 U.S.C. 1251 to 1387].

12. "Criteria" means elements of water quality standards that are expressed as pollutant concentrations, levels, or narrative statements representing a water quality that supports a designated use.

13. "Critical flow condition" means the lowest flow over seven consecutive days that has a probability of occurring once in 10 years (7 Q 10).

14. "Deep lake" means a lake or reservoir with an average depth of more than 6 meters.

15. "Designated use" means a use specified in Appendix B of this Article for a surface water.

16. "Domestic water source (DWS)" means the use of a surface water as a source of potable water. Treatment of a surface water may be necessary to yield a finished water suitable for human consumption.

17. "Effluent-dependent water (EDW)" means a surface water, classified under R18-11-113, that consists of a point source discharge of wastewater. An effluent-dependent water is a surface water that, without the point source discharge of wastewater, would be an ephemeral water.

18. "Ephemeral water" means a surface water that has a channel that is at all times above the water table and flows only in direct response to precipitation.

19. "Existing use" means a use attained in the waterbody on or after November 28, 1975, whether or not it is included in the water quality standards.

20. "Fish consumption (FC)" means the use of a surface water by humans for harvesting aquatic organisms for consumption. Harvestable aquatic organisms include, but are not limited to, fish, clams, turtles, crayfish, and frogs.

21. "Full-body contact (FBC)" means the use of a surface water for swimming or other recreational activity that causes the human body to come into direct contact with the water to the point of complete submergence. The use is such that ingestion of the water is likely and sensitive body organs, such as the eyes, ears, or nose, may be exposed to direct contact with the water.

22. "Geometric mean" means the nth root of the product of n items or values. The geometric mean is calculated using the following formula:

23. "Hardness" means the sum of the calcium and magnesium concentrations, expressed as calcium carbonate (CaCO3) in milligrams per liter.

24. "Igneous lake" means a lake located in volcanic, basaltic, or granite geology and soils.

25. "Intermittent water" means a stream or reach that flows continuously only at certain times of the year, as when it receives water from a spring or from another surface source, such as melting snow.

26. "Mixing zone" means an area or volume of a surface water that is contiguous to a point source discharge where dilution of the discharge takes place.

27. "Oil" means petroleum in any form, including crude oil, gasoline, fuel oil, diesel oil, lubricating oil, or sludge.

28. "Outstanding Arizona water (OAW)" means a surface water that is classified as an outstanding state resource water by the Director under R18-11-112.

29. "Partial-body contact (PBC)" means the recreational use of a surface water that may cause the human body to come into direct contact with the water, but normally not to the point of complete submergence (for example, wading or boating). The use is such that ingestion of the water is not likely and sensitive body organs, such as the eyes, ears, or nose, will not normally be exposed to direct contact with the water.

30. "Perennial water" means a surface water that flows continuously throughout the year.

31. "Pollutant" means fluids, contaminants, toxic wastes, toxic pollutants, dredged spoil, solid waste, substances and chemicals, pesticides, herbicides, fertilizers and other agricultural chemicals, incinerator residue, sewage, garbage, sewage sludge, munitions, petroleum products, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and mining, industrial, municipal, and agricultural wastes or any other liquid, solid, gaseous, or hazardous substance. A.R.S § 49-201(29)

32. "Practical quantitation limit" means the lowest level of quantitative measurement that can be reliably achieved during a routine laboratory operation.

33. "Reference condition" means a set of ecological measurements from a population of relatively undisturbed waterbodies within a region that establish a basis for making comparisons of biological condition among samples.

34. "Regional Administrator" means the Regional Administrator of Region IX of the U.S. Environmental Protection Agency.

35. "Regulated discharge" means a point-source discharge regulated under an AZPDES permit, a discharge regulated by a § 404 permit, and any discharge authorized by a federal permit or license that is subject to state water quality certification under § 401 of the Clean Water Act.

36. "Riffle habitat" means a stream segment where moderate water velocity and substrate roughness produce moderately turbulent conditions that break the surface tension of the water and may produce breaking wavelets that turn the surface water into white water.

37. "Run habitat" means a stream segment where there is moderate water velocity that does not break the surface tension of the water and does not produce breaking wavelets that turn the surface water into white water.

38. "Sedimentary lake" means a lake or reservoir in sedimentary or karst geology and soils.

39. "Shallow lake" means a lake or reservoir, excluding an urban lake, with a smaller, flatter morphology and an average depth of less than 3 meters and a maximum depth of less than 4 meters.

40. "Significant degradation" means:

a. The consumption of 20 percent or more of the available assimilative capacity for a pollutant of concern at critical flow conditions, or

b. Any consumption of assimilative capacity beyond the cumulative cap of 50 percent of assimilative capacity.

41. "Surface water" means a water of the United States and includes the following:

a. A water that is currently used, was used in the past, or may be susceptible to use in interstate or foreign commerce;

b. An interstate water, including an interstate wetland;

c. All other waters, such as an intrastate lake, reservoir, natural pond, river, stream (including an intermittent or ephemeral stream), creek, wash, draw, mudflat, sandflat, wetland, slough, backwater, prairie pothole, wet meadow, or playa lake, the use, degradation, or destruction of which would affect or could affect interstate or foreign commerce, including any such water:

i. That is or could be used by interstate or foreign travelers for recreational or other purposes;

ii. From which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or

iii. That is used or could be used for industrial purposes by industries in interstate or foreign commerce;

d. An impoundment of a surface water as defined by this definition;

e. A tributary of a surface water identified in subsections (41)(a) through (d); and

f. A wetland adjacent to a surface water identified in subsections (41)(a) through (e).

42. "Total nitrogen" means the sum of the concentrations of ammonia (NH3), ammonium ion (NH4+), nitrite (NO2), and nitrate (NO3), and dissolved and particulate organic nitrogen expressed as elemental nitrogen.

43. "Total phosphorus" means all of the phosphorus present in a sample, regardless of form, as measured by a persulfate digestion procedure.

44. "Toxic" means a pollutant or combination of pollutants, that after discharge and upon exposure, ingestion, inhalation, or assimilation into an organism, either directly from the environment or indirectly by ingestion through food chains, may cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunctions in reproduction), or physical deformations in the organism or its offspring.

45. "Urban lake" means a manmade lake within an urban landscape.

46. "Use attainability analysis" means a structured scientific assessment of the factors affecting the attainment of a designated use including physical, chemical, biological, and economic factors.

47. "Wadeable" means a surface water can be safely crossed on foot and sampled without a boat.

48. "Wastewater" does not mean:

a. Stormwater,

b. Discharges authorized under the De Minimus General Permit,

c. Other allowable non-stormwater discharges permitted under the Construction General Permit or the Multi-sector General Permit, or

d. Stormwater discharges from a municipal storm sewer system (MS4) containing incidental amounts of non-stormwater that the MS4 is not required to prohibit.

49. "Wetland" means an area that is inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances does support, a prevalence of vegetation typically adapted for life in saturated soil conditions. A wetland includes a swamp, marsh, bog, cienega, tinaja, and similar areas.

50. "Zone of passage" means a continuous water route of volume, cross-sectional area, and quality necessary to allow passage of free-swimming or drifting organisms with no acutely toxic effect produced on the organisms.

Historical Note

Former Section R9-21-101 repealed, new Section R9-21-101 adopted effective January 29, 1980 (Supp. 80-1). Amended effective April 17, 1984 (Supp. 84-2). Amended effective January 7, 1985 (Supp. 85-1). Amended by adding subsection (C) effective August 12, 1986 (Supp. 86-4). Former Section R9-21-101 renumbered without change as Section R18-11-101 (Supp. 87-3). Former Section R18-11-101 repealed, new Section R18-11-101 adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Deleted first definition to R18-11-101(32) "Navigable Water", previously printed in error
(Supp. 96-3). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 9 A.A.R. 716, effective April 8, 2003 (Supp. 03-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-102. Applicability

A. The water quality standards prescribed in this Article apply to surface waters.

B. The water quality standards prescribed in this Article do not apply to the following:

1. A waste treatment system, including an impoundment, pond, lagoon, or constructed wetland that is a part of the waste treatment system;

2. A man-made surface impoundment and any associated ditch and conveyance used in the extraction, beneficiation, or processing of metallic ores that is not a surface water or is located in an area that once was a surface water but is no longer a surface water because it has been and remains legally converted, including:

a. A pit,

b. Pregnant leach solution pond,

c. Raffinate pond,

d. Tailing impoundment,

e. Decant pond,

f. Pond or a sump in a mine pit associated with dewatering activity,

g. Pond holding water that has come into contact with a process or product and that is being held for recycling,

h. Spill or upset catchment pond, or

i. A pond used for onsite remediation;

3. A man-made cooling pond that is neither created in a surface water nor results from the impoundment of a surface water; or

4. A surface water located on tribal lands.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-103. Repealed

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Repealed effective April 24, 1996 (Supp. 96-2).

R18-11-104. Designated Uses

A. The Director shall adopt or remove a designated use or subcategory of a designated use by rule.

B. Designated uses of a surface water may include full-body contact, partial-body contact, domestic water source, fish consumption, aquatic and wildlife (cold water), aquatic and wildlife (warm water), aquatic and wildlife (ephemeral), aquatic and wildlife (effluent-dependent water), agricultural irrigation, and agricultural livestock watering. The designated uses for specific surface waters are listed in Appendix B of this Article.

C. Numeric water quality criteria to maintain and protect water quality for the designated uses are prescribed in Appendix A, R18-11-109, R18-11-110, and R18-11-112. Narrative water quality standards to protect all surface waters are prescribed in R18-11-108.

D. If a surface water has more than one designated use listed in Appendix B, the most stringent water quality criterion applies.

E. The Director shall revise the designated uses of a surface water if water quality improvements result in a level of water quality that permits a use that is not currently listed as a designated use in Appendix B.

F. In designating uses of a surface water and in establishing water quality criteria to protect the designated uses, the Director shall take into consideration the applicable water quality standards for downstream surface waters and shall ensure that the water quality standards that are established for an upstream surface water also provide for the attainment and maintenance of the water quality standards of downstream surface waters.

G. A use attainability analysis shall be conducted prior to removal of a designated use or adoption of a subcategory of a designated use that requires less stringent water quality criteria.

H. The Director may remove a designated use or adopt a subcategory of a designated use that requires less stringent water quality criteria, provided the designated use is not an existing use and it is demonstrated through a use attainability analysis that attaining the designated use is not feasible for any of the following reasons:

1. A naturally-occurring pollutant concentration prevents the attainment of the use;

2. A natural, ephemeral, intermittent, or low-flow condition or water level prevents the attainment of the use;

3. A human-caused condition or source of pollution prevents the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place;

4. A dam, diversion, or other type of hydrologic modification precludes the attainment of the use, and it is not feasible to restore the surface water to its original condition or to operate the modification in a way that would result in attainment of the use;

5. A physical condition related to the natural features of the surface water, such as the lack of a proper substrate, cover, flow, depth, pools, riffles, and the like, unrelated to water quality, precludes attainment of an aquatic life designated use; or

6. Controls more stringent than those required by § 301 (b) and § 306 of the Clean Water Act [33 U.S.C. § 1311 and § 1316] are necessary to attain the use and implementation of the controls would result in substantial and widespread economic and social impact.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1).

R18-11-105. Tributaries; Designated Uses

The following water quality standards apply to a surface water that is not listed in Appendix B but that is a tributary to a listed surface water.

1. The aquatic and wildlife (ephemeral) and partial-body contact standards apply to an unlisted tributary that is an ephemeral water.

2. The aquatic and wildlife (cold water), full-body contact, and fish consumption standards apply to an unlisted tributary that is a perennial or intermittent surface water and is above 5000 feet in elevation.

3. The aquatic and wildlife (warm water), full-body contact, and fish consumption standards apply to an unlisted tributary that is a perennial or intermittent surface water and is below 5000 feet in elevation.

Historical Note

Adopted effective April 24, 1996 (Supp. 96-2). Section heading amended per instructions of the Department of Environmental Quality, August 9, 1996 (Supp. 96-3). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1).

R18-11-106. Net Ecological Benefit

A. The Director may, by rule, modify a water quality standard on the ground that there is a net ecological benefit associated with the discharge of effluent to support or create a riparian and aquatic habitat in an area where water resources are limited. The Director may modify a water quality standard for a pollutant if it is demonstrated that:

1. The discharge of effluent creates or supports an ecologically valuable aquatic, wetland, or riparian ecosystem in an area where these resources are limited;

2. The ecological benefits associated with the discharge of effluent under a modified water quality standard exceed the environmental costs associated with the elimination of the discharge of effluent;

3. The cost of treatment to achieve compliance with a water quality standard is so high that it is more cost effective to eliminate the discharge of effluent to the surface water. The discharger shall demonstrate that it is feasible to eliminate the discharge of effluent that creates or supports the ecologically valuable aquatic, wetland, or riparian ecosystem and that a plan to eliminate the discharge is under active consideration;

4. The discharge of effluent to the surface water will not cause or contribute to a violation of a water quality standard that has been established for a downstream surface water;

5. All practicable point source discharge control programs, including local pretreatment, waste minimization, and source reduction programs are implemented; and

6. The discharge of effluent does not produce or contribute to the concentration of a pollutant in the tissues of aquatic organisms or wildlife that is likely to be harmful to humans or wildlife through food chain concentration.

B. The Director shall not modify a water quality criterion for a pollutant to be less stringent than a technology-based effluent limitation that applies to the discharge of that effluent. The discharge of effluent shall, at a minimum, comply with applicable technology-based effluent limitations.

Historical Note

Adopted effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1).

R18-11-107. Antidegradation

A. The Director shall, using R18-11-107.01 and this Section, determine whether there is degradation of water quality in a surface water on a pollutant-by-pollutant basis.

B. Tier 1: The level of water quality necessary to support an existing use shall be maintained and protected. No degradation of existing water quality is permitted in a surface water where the existing water quality does not meet the applicable water quality standards.

C. Tier 2: Where existing water quality in a surface water is better than the applicable water quality standard the existing water quality shall be maintained and protected. The Director may allow degradation of existing water quality in the surface water, if the Director makes all of the following findings:

1. The water quality necessary for existing uses is fully protected and water quality is not lowered to a level that does not comply with applicable water quality standards,

2. The highest statutory and regulatory requirements for new and existing point sources are achieved,

3. All cost-effective and reasonable best management practices for nonpoint source pollution control are implemented, and

4. Allowing lower water quality is necessary to accommodate important economic or social development in the area where the surface water is located.

D. Tier 3: Existing water quality shall be maintained and protected in a surface water that is classified as an OAW under R18-11-112. Degradation of an OAW under subsection (C) is prohibited.

E. The Director shall implement this Section in a manner consistent with § 316 of the Clean Water Act [33 U.S.C. 1326] if a potential water quality impairment associated with a thermal discharge is involved.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-107.01. Antidegradation Criteria

A. Tier 1 antidegradation protection.

1. Tier 1 antidegradation protection applies to the following surface waters:

a. A surface water listed on the 303(d) list for the pollutant that resulted in the listing,

b. An effluent dependent water,

c. An ephemeral water,

d. An intermittent water, and

e. A canal listed in Appendix B.

2. A regulated discharge shall not cause a violation of a surface water quality standard or a wasteload allocation in a total maximum daily load approved by EPA.

3. Except as provided in subsections (E) and (F), Tier 1 antidegradation review requirements are satisfied for a point-source discharge regulated under an individual AZPDES permit to an ephemeral water, effluent dependent water, intermittent water, or a canal listed in Appendix B, if water quality-based effluent limitations designed to achieve compliance with applicable surface water quality standards are established in the permit and technology-based requirements of the Clean Water Act for the point source discharge are met.

B. Tier 2 antidegradation protection.

1. Tier 2 antidegradation protection applies to a perennial water with existing water quality that is better than applicable water quality standards. A perennial water that is not listed in subsection (A)(1) nor classified as an OAW under A.A.C. R18-9-112(G) has Tier 2 antidegradation protection for all pollutants of concern.

2. A regulated discharge that meets the following criteria, at critical flow conditions, does not cause significant degradation:

a. The regulated discharge consumes less than 20 percent of the available assimilative capacity for each pollutant of concern, and

b. At least 50 percent of the assimilative capacity for each pollutant of concern remains available in the surface water for each pollutant of concern.

3. Antidegradation review. Any person proposing a new or expanded regulated discharge under an individual AZPDES permit that may cause significant degradation shall provide the Department with the following information:

a. Alternative analysis.

i. The person seeking authorization for the discharge shall prepare and submit a written analysis of alternatives to the discharge. The analysis shall provide information on all reasonable, cost-effective, less-degrading or non-degrading discharge alternatives. Alternatives may include wastewater treatment process changes or upgrades, pollution prevention measures, source reduction, water reclamation, alternative discharge locations, groundwater recharge, land application or treatment, local pretreatment programs, improved operation and maintenance of existing systems, seasonal or controlled discharge to avoid critical flow conditions, and zero discharge;

ii. The alternatives analysis shall include cost information on base pollution control measures associated with the regulated discharge and cost information for each alternative;

iii. The person shall implement the alternative that is cost-effective and reasonable, results in the least degradation, and is approved by the Director. An alternative is cost-effective and reasonable if treatment costs associated with the alternative are less than a 10 percent increase above the cost of base pollution control measures;

iv. For purposes of this subsection, "base pollution control measures" are water pollution control measures required to meet technology-based requirements of the Clean Water Act and water quality-based effluent limits designed to achieve compliance with applicable water quality standards;

b. Social and economic justification. The person shall demonstrate to the Director that significant degradation is necessary to accommodate important economic or social development in the local area. The person seeking authorization for the discharge shall prepare a written social and economic justification that includes a description of the following:

i. The geographic area where significant degradation of existing water quality will occur;

ii. The current baseline social and economic conditions in the local area;

iii. The net positive social and economic effects of development associated with the regulated discharge and allowing significant degradation;

iv. The negative social, environmental, and economic effects of allowing significant degradation of existing water quality; and

v. Alternatives to the regulated discharge that do not significantly degrade water quality yet may yield comparable social and economic benefits;

c. Baseline characterization. A person seeking authorization to discharge under an individual AZPDES permit to a perennial water shall provide baseline water quality data on pollutants of concern where no data exist or there are insufficient data to characterize baseline water quality and to determine available assimilative capacity. A discharger shall characterize baseline water quality at a location upstream of the proposed discharge location; and

4. For purposes of this Section, the term "pollutant of concern" means a pollutant with either a numeric or narrative water quality standard.

5. Public participation. The Director shall provide public notice and an opportunity to comment on an antidegradation review under subsection (B)(3) and shall provide an opportunity for a public hearing under A.A.C. R18-9-A908(B).

C. Tier 3 antidegradation protection.

1. Tier 3 antidegradation protection applies only to an OAW listed in R18-11-112(G).

2. A new or expanded point-source discharge directly to an OAW is prohibited.

3. A person seeking authorization for a regulated discharge to a tributary to, or upstream of, an OAW shall demonstrate in a permit application or in other documentation submitted to the Department that the regulated discharge will not degrade existing water quality in the downstream OAW.

4. A discharge regulated under a § 404 permit that may affect existing water quality of an OAW requires an individual § 401 water quality certification to ensure that existing water quality is maintained and protected and any water quality impacts are temporary. Temporary water quality impacts are those impacts that occur for a period of six months or less.

D. Antidegradation review of a § 404 permit. The Director shall conduct the antidegradation review of any discharge authorized under a nationwide or regional § 404 permit as part of the § 401 water quality certification prior to issuance of the nationwide or regional permit. The Director shall conduct the antidegradation review of an individual § 404 permit if the discharge may degrade existing water quality in an OAW or a water listed on the 303(d) List of impaired waters. For regulated discharges that may degrade water quality in an OAW or a water that is on the 303(d) List of impaired waters, the Director shall conduct the antidegradation review as part of the § 401 water quality certification process.

E. Antidegradation review of an AZPDES stormwater permit. An individual stormwater permit for a municipal separate storm sewer system (MS4) meets antidegradation requirements if the permittee complies with the permit, including developing a stormwater management plan containing controls that reduce the level of pollutants in stormwater discharges to the maximum extent practicable.

F. Antidegradation review of a general permit. The Director shall conduct the antidegradation review of a regulated discharge authorized by a general permit at the time the general permit is issued or renewed. A person seeking authorization to discharge under a general permit is not required to undergo an individual antidegradation review at the time the Notice of Intent is submitted unless the discharge may degrade existing water quality in an OAW or a water listed on the 303(d) List of impaired waters.

Historical Note

New Section made by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-108. Narrative Water Quality Standards

A. A surface water shall not contain pollutants in amounts or combinations that:

1. Settle to form bottom deposits that inhibit or prohibit the habitation, growth, or propagation of aquatic life;

2. Cause objectionable odor in the area in which the surface water is located;

3. Cause off-taste or odor in drinking water;

4. Cause off-flavor in aquatic organisms;

5. Are toxic to humans, animals, plants, or other organisms;

6. Cause the growth of algae or aquatic plants that inhibit or prohibit the habitation, growth, or propagation of other aquatic life or that impair recreational uses;

7. Cause or contribute to a violation of an aquifer water quality standard prescribed in R18-11-405 or R18-11-406; or

8. Change the color of the surface water from natural background levels of color.

B. A surface water shall not contain oil, grease, or any other pollutant that floats as debris, foam, or scum; or that causes a film or iridescent appearance on the surface of the water; or that causes a deposit on a shoreline, bank, or aquatic vegetation. The discharge of lubricating oil or gasoline associated with the normal operation of a recreational watercraft is not a violation of this narrative standard.

C. A surface water shall not contain a discharge of suspended solids in quantities or concentrations that interfere with the treatment processes at the nearest downstream potable water treatment plant or substantially increase the cost of handling solids produced at the nearest downstream potable water treatment plant.

D. A surface water shall not contain solid waste such as refuse, rubbish, demolition or construction debris, trash, garbage, motor vehicles, appliances, or tires.

E. A wadeable, perennial stream shall support and maintain a community of organisms having a taxa richness, species composition, tolerance, and functional organization comparable to that of a stream with reference conditions in Arizona.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-108.01. Narrative Biological Criteria for Wadeable, Perennial Streams

A. The narrative biological criteria in this Section apply to a wadeable, perennial stream with either an aquatic and wildlife (cold water) or an aquatic and wildlife (warm water) designated use.

B. The biological standard in R18-11-108(E) is met when a bioassessment result, as measured by the Arizona Index of Biological Integrity (IBI), for cold or warm water is:

1. Greater than or equal to the 25th percentile of reference condition, or

2. Greater than the 10th percentile of reference condition and less than the 25th percentile of reference condition and a verification bioassessment result is greater than or equal to the 25th percentile of reference condition.

C. Arizona Index of Biological Integrity (IBI) scores:

Bioassessment Result

Index of Biological Integrity Scores

A&Wc

A&Ww

Greater than or equal to the 25th percentile of reference condition

≥52

≥50

Greater than the 10th and less than the 25th percentile of reference condition

46 - 51

40 - 49

Historical Note

New Section made by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-108.02. Narrative Bottom Deposit Criteria for Wadeable, Perennial Streams

A. The narrative bottom deposit criteria in this Section apply to wadeable, perennial streams with an aquatic and wildlife (cold water) or an aquatic and wildlife (warm water) designated use.

B. The narrative water quality standard for bottom deposits at R18-11-108(A)(1) is met when:

1. The percentage of fine sediments in the riffle habitats of a wadeable, perennial stream with an A&Wc designated use, as determined by a riffle pebble count, is less than or equal to 30 percent.

2. The percentage of fine sediments in all stream habitats of a wadeable, perennial stream with an A&Ww designated use, as determined by a reach level pebble count, is equal to or less than 50 percent.

Historical Note

New Section made by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-108.03. Narrative Nutrient Criteria for Lakes and Reservoirs

A. The narrative nutrient criteria in this Section apply to those lakes and reservoirs categorized in Appendix B.

B. The narrative water quality standard for nutrients at R18-11-108(A)(6) is met when, based on a minimum of two lake sample events conducted during the peak season based on lake productivity, the results show an average chlorophyll-a value below the applicable threshold for designated use and lake and reservoir category in subsection (D).

1. The mean chlorophyll-a concentration is less than the lower value in the target range chlorophyll-a for the lake and reservoir category, or

2. The mean chlorophyll-a concentration is within the target range for the lake and reservoir category and:

a. The mean blue green algae count is at or below 20,000 per milliliter, and

b. The blue green algae count is less than 50 percent of the total algae count, and

c. There is no evidence of nutrient-related impairments such as:

i. An exceedance of dissolved oxygen or pH standards;

ii. A fish kill coincident with a dissolved oxygen or pH exceedance;

iii. A fish kill or other aquatic organism mortality coincident with algal toxicity;

iv. Secchi depth is less than the lower value prescribed for the lake and reservoir category;

v. A nuisance algal bloom is present in the limnetic portion of the lake or reservoir; or

vi. The concentration of total phosphorous, total nitrogen, or total Kjehldal nitrogen (TKN) is greater than the upper value in the range prescribed for the lake and reservoir category; or

3. For a shallow lake. In addition to meeting the mean chlorophyll-a concentrations in subsections (B)(1) or (2), submerged aquatic vegetation covers 50 percent or less of the lake bottom and there is less than a 5 mg/L swing in diel-dissolved oxygen concentration measured within the photic zone.

C. The following threshold ranges apply during the peak season for lake productivity:

1. Warm water lakes peak season, April - October;

2. Cold water lakes peak season, May - September.

D. The following table lists the numeric targets for lakes and reservoirs.

NUMERIC TARGETS FOR LAKES AND RESERVOIRS

Designated
Use

Lake
Category

Chl-a
(µg/L)

Secchi
Depth
(m)

Total
Phosphorus
(µg/L)

Total
Nitrogen
(mg/L)

Total
Kjehldal
Nitrogen
(TKN)
(mg/L)

Blue-
Green
Algae
(per ml)

Blue-
Green
Algae
(% of total count)

Dissolved
Oxygen
(mg/L)

pH
(SU)

FBC and PBC

Deep

10-15

1.5-2.5

70-90

1.2-1.4

1.0-1.1

20,000

 

 

6.5-9.0

Shallow

10-15

1.5-2.0

70-90

1.2-1.4

1.0-1.1

 

 

Igneous

20-30

0.5-1.0

100-125

1.5-1.7

1.2-1.4

 

 

Sedimentary

20-30

1.5-2.0

100-125

1.5-1.7

1.2-1.4

 

 

Urban

20-30

0.5-1.0

100-125

1.5-1.7

1.2-1.4

 

 

A&Wc

All

5-15

1.5-2.0

50-90

1.0-1.4

0.7-1.1

 

<50

7
(top m)

6.5-9.0

A&Ww

All (except urban lakes)

25-40

0.8-1.0

115-140

1.6-1.8

1.3-1.6

 

6
(top m)

Urban

30-50

0.7-1.0

125-160

1.7-1.9

1.4-1.7

 

A&Wedw

All

30-50

0.7-1.0

125-160

1.7-1.9

1.4-1.7

 

6.5-9.0

DWS

All

10-20

0.5-1.5

70-100

1.2-1.5

1.0-1.2

20,000

 

 

5.0-9.0

Historical Note

New Section made by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-109. Numeric Water Quality Standards

A. E. coli bacteria. The following water quality standards for Escherichia coli (E. coli) are expressed in colony forming units per 100 milliliters of water (cfu / 100 ml) or as a Most Probable Number (MPN):

E. coli

FBC

PBC

Geometric mean (minimum of four samples in 30 days)

126

126

Single sample maximum

235

575

B. pH. The following water quality standards for pH are expressed in standard units:

pH

DWS

FBC, PBC, A&W 1

AgI

AgL

Maximum

9.0

9.0

9.0

9.0

Minimum

5.0

6.5

4.5

6.5

C. The maximum allowable increase in ambient water temperature, due to a thermal discharge is as follows:

A&Ww

A&Wedw

A&Wc

3.0° C

3.0° C

1.0° C

D. Suspended sediment concentration.

1. The following water quality standards for suspended sediment concentration, expressed in milligrams per liter (mg/L), are expressed as a median value determined from a minimum of four samples collected at least seven days apart:

A&Wc

A&Ww

25

80

2. The Director shall not use the results of a suspended sediment concentration sample collected during or within 48 hours after a local storm event to determine the median value.

E. Dissolved oxygen. The following water quality standards for dissolved oxygen are expressed in milligrams per liter (mg/L):

1.

Dissolved oxygen

A&Ww

A&Wc

 

Single sample minimum2

6.0

7.0

2.

Dissolved oxygen in effluent-dependent waters

 

(single sample minimum)

A&W edw

 

Three hours after sunrise to sunset

3.0

 

Sunset to three hours after sunrise

1.0

3.

A surface water meets with the water quality standard for dissolved oxygen if the percent saturation of dissolved oxygen is equal to or greater than 90 percent.

F. Nutrient criteria. The following water quality standards for total phosphorus and total nitrogen are expressed in milligrams per liter (mg/L). A minimum of 10 samples, each taken at least 10 days apart in a consecutive 12-month period, are required to determine a 90th percentile. Not more than 10 percent of the samples may exceed the 90th percentile value listed below:

1. Verde River and its tributaries from the Verde headwaters to Bartlett Lake:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.10

1.00

0.30

1.50

1.00

3.00

2. Black River, Tonto Creek, and their tributaries that are not located on tribal lands:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.10

0.50

0.20

1.00

0.80

2.00

3. Salt River and its tributaries above Roosevelt Reservoir, excluding Pinal Creek, that are not located on tribal lands:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.12

0.60

0.30

1.20

1.00

2.00

4. Salt River below Stewart Mountain Dam to its confluence with the Verde River:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.05

0.60

-
-

0.20

3.00

5. Little Colorado River and its tributaries above River Reservoir in Greer, South Fork of Little Colorado River above South Fork Campground, and Water Canyon Creek above Apache-Sitgreaves National Forest boundary:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.08

0.60

0.10

0.75

0.75

1.10

6. Little Colorado River at the crossing of Apache County Road No. 124:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

-
-

-
-

0.75

1.80

7. Little Colorado River above Lyman Lake to above the Amity Ditch diversion near crossing of Arizona Highway 273 (applies only when in-stream turbidity is less than 50 NTU):

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

0.20

0.70

0.30

1.20

0.75

1.50

8. Colorado River at the Northern International Boundary near Morelos Dam:

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

-
-

0.33

2.50

-
-

9. Oak Creek from its headwaters at 35°01'30"/111°44'12" to its confluence with the Verde River at 34°40'41"/111°56'30" and the West Fork of Oak Creek from its headwaters at 35°02'44"/111°54'48" to its confluence with Oak Creek at 34°59'14"/111°44'46".

Surface Water

Annual
Mean

90th
Percentile

Single
Sample
Maximum

Total phosphorus

Total nitrogen

1.00

0.10

1.50

0.25

2.50

0.30

10. No discharge of wastewater to Show Low Creek or its tributaries upstream of and including Fools Hollow Lake shall exceed 0.16 mg/L total phosphates as P.

11. No discharge of wastewater to the San Francisco River or its tributaries upstream of Luna Lake Dam shall exceed 1.0 mg/L total phosphates as P.

G. Footnotes:

1. "1" Includes A&Wc, A&Ww, A&Wedw, and A&We.

2. "2" The dissolved oxygen water quality standard for a lake applies below the water surface but not at a depth greater than one meter.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-110. Salinity Standards for the Colorado River

A. The flow-weighted average annual salinity in the lower main stem of the Colorado River shall not exceed the following criteria:

Location Total Dissolved Solids

Below Hoover Dam 723 mg/L

Below Parker Dam 747 mg/L

At Imperial Dam 879 mg/L

B. The plan of implementation contained in the "2005 Review, Water Quality Standards for Salinity, Colorado River System," approved October 2005, is incorporated by reference to preserve the basin-wide approach to salinity control developed by the Colorado River Basin Salinity Control Forum and to ensure compliance with the numeric criteria for salinity in subsection (A). This material does not include any later amendments or editions of the incorporated material. Copies of the incorporated material are available for inspection at the Arizona Department of Environmental Quality, 1110 West Washington Street, Phoenix, Arizona 85007 or may be obtained from the Colorado River Basin Salinity Control Forum, 106 West 500 South, Suite 101, Bountiful, Utah 84010-6232.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-111. Analytical Methods

A. A person conducting an analysis of a sample taken to determine compliance with a water quality standard shall use an analytical method prescribed in A.A.C. R9-14-610, 40 CFR 136.3, or an alternative analytical method approved under A.A.C. R9-14-610(C).

B. A test result from a sample taken to determine compliance with a water quality standard is valid only if the sample is analyzed by a laboratory that is licensed by the Arizona Department of Health Services, an out-of-state laboratory licensed under A.R.S. § 36-495.14, or a laboratory exempted under A.R.S. § 36-495.02, for the analysis performed.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-112. Outstanding Arizona Waters

A. The Director shall classify a surface water as an outstanding Arizona water (OAW) by rule.

B. The Director may adopt, under R18-11-115, a site-specific standard to maintain and protect existing water quality in an OAW.

C. Any person may nominate a surface water for classification as an OAW by filing a nomination with the Director. The nomination shall include:

1. A map and a description of the surface water;

2. A written statement in support of the nomination, including specific reference to the applicable criteria for an OAW classification prescribed in subsection (D);

3. Supporting evidence demonstrating that the criteria prescribed in subsection (D) are met; and

4. Available water quality data relevant to establishing the baseline water quality of the proposed OAW.

D. The Director may classify a surface water as an OAW based upon the following criteria:

1. The surface water is a perennial or intermittent water;

2. The surface water is in a free-flowing condition. For purposes of this subsection, "in a free-flowing condition" means that a surface water does not have an impoundment, diversion, channelization, rip-rapping or other bank armor, or another hydrological modification within the reach nominated for an OAW classification;

3. The surface water has good water quality. For purposes of this subsection, "good water quality" means that the surface water has water quality that meets or is better than applicable surface water quality standards. A surface water that is listed as impaired under R18-11-604(E) is ineligible for OAW classification; and

4. The surface water meets one or both of the following conditions:

a. The surface water is of exceptional recreational or ecological significance because of its unique attributes, such as the geology, flora and fauna, water quality, aesthetic value, or the wilderness characteristic of the surface water;

b. An endangered or threatened species is associated with the surface water and the existing water quality is essential to the species' maintenance and propagation or the surface water provides critical habitat for the threatened or endangered species. An endangered or threatened species is identified in "Endangered and Threatened Wildlife," 50 CFR 17.11 (revised 2005), and "Endangered and Threatened Plants," 50 CFR 17.12 (revised 2005). This material is incorporated by reference and does not include any later amendments or editions of the incorporated material. Copies of the incorporated material are available for inspection at the Arizona Department of Environmental Quality, 1110 West Washington Street, Phoenix, Arizona 85007 or may be obtained from the National Archives and Records Administration at http://www.access.gpo.gov/nara/cfr/cfr-table-search.html#page1.

E. The Director shall hold at least one public meeting in the local area of a surface water that is nominated for classification as an OAW to solicit public comment on the nomination.

F. The Director shall consider the following factors when deciding whether to classify a surface water as an OAW:

1. Whether there is the ability to manage the surface water and its watershed to maintain and protect existing water quality;

2. The social and economic impact of Tier 3 antidegradation protection;

3. The public comments in support of, or in opposition to, an OAW classification;

4. The timing of the nomination relative to the triennial review of surface water quality standards;

5. The consistency of an OAW classification with applicable water quality management plans; and

6. Whether the nominated surface water is located within a national or state park, national monument, national recreation area, wilderness area, riparian conservation area, area of critical environmental concern, or it has another special use designation (for example, Wild and Scenic River).

G. The following surface waters are classified as OAWs:

1. The West Fork of the Little Colorado River, from its headwaters at 33°55'02"/109°33'30" to Government Springs at 33°59'33"/109°27'54" (approximately 9.1 river miles);

2. Oak Creek, from its headwaters at 35°01'30"/111°44'12" to its confluence with the Verde River at 34°40'41"/111°56'30" (approximately 50.3 river miles);

3. West Fork of Oak Creek, from its headwaters at 35°02'44"/111°54'48" to its confluence with Oak Creek at 34°59'14"/111°44'46" (approximately 15.8 river miles);

4. Peeples Canyon Creek, from its headwaters at 34°23'57"/113°19'45" to its confluence with the Santa Maria River at 34°20'36"/113°15'12" (approximately 8.1 river miles);

5. Burro Creek, from its headwaters at 34°52'46.5"/113°05'13.5" to its confluence with Boulder Creek at 34°374.5"/113°18'36" (approximately 29.5 miles);

6. Francis Creek, from its headwaters at 34°54'38"/113°20'30" to its confluence with Burro Creek at 34°44'29"/113°14'37" (approximately 22.9 river miles);

7. Bonita Creek, from its boundary of the San Carlos Indian Reservation at 33°03'08"/109°33'41" to its confluence with the Gila River at 32°53'36"/109°28'43" (approximately 14.7 river miles);

8. Cienega Creek, from its confluence with Gardner Canyon and Spring Water Canyon at 31°47'38.5"/110°35'21.5" to the USGS gaging station at 32°02'09"/110°40'34" (approximately 28.3 river miles);

9. Aravaipa Creek, from its confluence with Stowe Gulch at 32°52'10"/110°22'03" to the downstream boundary of the Aravaipa Canyon Wilderness Area at 32°54'23"/110°33'42" (approximately 15.5 river miles);

10. Cave Creek, from its headwaters at 31°50'30"/109°17'04.5" to the Coronado National Forest boundary at 31°54'38"/109°08'40" (approximately 10.4 river miles);

11. South Fork of Cave Creek, from its headwaters at 31°50'20"/109°16'33" to its confluence with Cave Creek at 31°53'04"/109°10'30" (approximately 8.6 river miles);

12. Buehman Canyon Creek, from its headwaters at 32°52'0.5"/110°39'54.5" to its confluence with unnamed tributary at 32°24'31.5"/110°32'08" (approximately 9.8 river miles);

13. Lee Valley Creek, from its headwaters at 33°55'49"/109°31'34" to its confluence with Lee Valley Reservoir at 33°56'28"/109°30'15.5" (approximately 1.6 river miles);

14. Bear Wallow Creek, from its headwaters at 33°35'54"/109°26'54.5" to the boundary of the San Carlos Indian Reservation at 33°37'52"/109°29'44" (approximately 4.25 river miles);

15. North Fork of Bear Wallow Creek, from its headwaters at 33°34'47.5"/109°21'59.5" to its confluence with Bear Wallow Creek at 33°35'54"/109°26'54.5" (approximately 3.8 river miles);

16. South Fork of Bear Wallow Creek, from its headwaters at 33°34'38.5"/109°23'58" to its confluence with Bear Wallow Creek at 33°35'54"/109°26'54.5" (approximately 3.8 river miles);

17. Snake Creek, from its headwaters at 33°37'21.5"/109°26'11" to its confluence with the Black River at 33°40'31.5"/109°28'58.5" (approximately 6.2 river miles);

18. Hay Creek, from its headwaters at 33°51'00"/109°28'48" to its confluence with the West Fork of the Black River at 33°48'30"/109°25'19" (approximately 5.5 river miles);

19. Stinky Creek, from the White Mountain Apache Indian Reservation boundary at 33°52'36.5"/109°29'45" to its confluence with the West Fork of the Black River at 33°51'21.5"/109°27'09.5" (approximately 3.0 river miles);

20. KP Creek, from its headwaters at 33°34'03"/109°21'19" to its confluence with the Blue River at 33°31'44"/109°12'04.5" (approximately 12.7 river miles);

21. Davidson Canyon, from the unnamed spring at 31°59'00"/110°38'46" to its confluence with Cienega Creek; and

22. Fossil Creek, from its headwaters at the confluence of Sandrock and Calf Pen Canyons above Fossil Springs at 34°26'48.7"/111°32'25" to its confluence with the Verde River at 34°18'21.8"/111°40'31.6" (approximately 17.2 river miles).

H. The designation of Fossil Creek as an OAW under subsection (G)(22) takes effect on June 30, 2010.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Added "water quality standards" to R18-11-112, previously omitted in error (Supp. 96-3). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-113. Effluent-Dependent Waters

A. The Director shall classify a surface water as an effluent-dependent water by rule.

B. The Director may adopt, under R18-11-115, a site-specific water quality standard for an effluent-dependent water.

C. Any person may submit a petition for rule adoption requesting that the Director classify a surface water as an effluent-dependent water. The petition shall include:

1. A map and a description of the surface water;

2. Information that demonstrates that the surface water consists of a point source discharge of wastewater; and

3. Information that demonstrates that, without a point source discharge of a wastewater, the receiving water is an ephemeral water.

D. The Director shall use the water quality standards that apply to an effluent-dependent water to derive water quality-based effluent limits for a point source discharge of wastewater to an ephemeral water.

E. The Director may use aquatic and wildlife (edw) acute standards only to derive water quality based effluent limits for a sporadic, infrequent, or emergency point source discharge to an ephemeral water or to an effluent-dependent water. The Director shall consider the following factors when deciding whether to apply A&Wedw (acute) standards:

1. The amount, frequency, and duration of the discharge;

2. The length of time water may be present in the receiving water;

3. The distance to a downstream water with aquatic and wildlife chronic standards; and

4. The likelihood of chronic exposure to pollutants.

F. The Director may establish alternative water quality-based effluent limits in an AZPDES permit based on seasonal differences in the discharge.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective December 18, 1992 (Supp. 92-4). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-114. Mixing Zones

A. The Director may establish a mixing zone for a point source discharge to a surface water as a condition of an AZPDES permit. A mixing zone is prohibited in an ephemeral water or where there is no water for dilution.

B. The owner or operator of a point source seeking the establishment of a mixing zone shall submit a request to the Director for a mixing zone as part of an application for an AZPDES permit. The request shall include:

1. An identification of the pollutant for which the mixing zone is requested;

2. A proposed outfall design;

3. A definition of the boundary of the proposed mixing zone. For purposes of this subsection, the boundary of a mixing zone means the location where the concentration of wastewater across a transect of the surface water differs by less than five percent; and

4. A complete and detailed description of the existing physical, biological, and chemical conditions of the receiving water and the predicted impact of the proposed mixing zone on those conditions.

C. The Director shall review the request for a mixing zone to determine whether the written request is complete. If the request is incomplete, the Director shall provide the applicant with a list of the additional information required.

D. The Director shall consider the following factors when deciding whether to grant or deny a request for a mixing zone:

1. The assimilative capacity of the receiving water;

2. The likelihood of adverse human health effects;

3. The location of drinking water plant intakes and public swimming areas;

4. The predicted exposure of biota and the likelihood that resident biota will be adversely affected;

5. Bioaccumulation;

6. Whether there will be acute toxicity in the mixing zone, and, if so, the size of the zone of initial dilution;

7. The known or predicted safe exposure levels for the pollutant for which the mixing zone is requested;

8. The size of the mixing zone;

9. The location of the mixing zone relative to biologically sensitive areas in the surface water;

10. The concentration gradient of the pollutant within the mixing zone;

11. Sediment deposition;

12. The potential for attracting aquatic life to the mixing zone; and

13. The cumulative impacts of other mixing zones and other discharges to the surface water.

E. Director determination.

1. The Director shall deny a request to establish a mixing zone if a water quality standard will be violated outside the boundaries of the proposed mixing zone. The Director shall notify the owner or operator of the denial in writing and shall state the reason for the denial.

2. If the Director approves the request to establish a mixing zone, the Director shall establish the mixing zone as a condition of an AZPDES permit. The Director shall include any mixing zone condition in the AZPDES permit that is necessary to protect human health and the designated uses of the surface water.

F. Any person who is adversely affected by the Director's decision to grant or deny a request for a mixing zone may appeal the decision under A.R.S. § 49-321 et seq. and A.R.S. § 41-1092 et seq.

G. The Director shall reevaluate a mixing zone upon issuance, reissuance, or modification of the AZPDES permit for the point source or a modification of the outfall structure.

H. Mixing zone requirements.

1. The length of a mixing zone shall not exceed 500 meters in a stream.

2. The total horizontal area allocated to all mixing zones on a lake shall not exceed 10 percent of the surface area of the lake.

3. Adjacent mixing zones in a lake shall not overlap or be located closer together than the greatest horizontal dimension of the largest mixing zone.

4. A mixing zone shall provide for a zone of passage of not less than 50 percent of the cross-sectional area of a river or stream.

5. The design of any discharge outfall shall maximize initial dilution of the wastewater in a surface water.

6. The size of the zone of initial dilution in a mixing zone shall prevent lethality to organisms passing through the zone of initial dilution.

I. The Director shall not establish a mixing zone in an AZPDES permit for the following persistent, bioaccumulative pollutants:

1. Chlordane,

2. DDT and its metabolites (DDD and DDE),

3. Dieldrin,

4. Dioxin,

5. Endrin,

6. Endrin aldehyde,

7. Heptachlor,

8. Heptachlor epoxide,

9. Lindane,

10. Mercury,

11. Polychlorinated biphenyls (PCBs), and

12. Toxaphene.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-115. Site-Specific Standards

A. The Director shall adopt a site-specific standard by rule.

B. The Director may adopt a site-specific standard based upon a request or upon the Director's initiative for any of the following reasons:

1. Local physical, chemical, or hydrological conditions of a surface water such as pH, hardness, or temperature alters the biological availability or toxicity of a pollutant;

2. The sensitivity of resident aquatic organisms that occur in a surface water to a pollutant differs from the sensitivity of the species used to derive the numeric water quality standards to protect aquatic life in Appendix A;

3. Resident aquatic organisms that occur in a surface water represent a narrower mix of species than those in the dataset used by the Department to derive numeric water quality standards to protect aquatic life in Appendix A; or

4. The natural background concentration of a pollutant is greater than the numeric water quality standard to protect aquatic life prescribed in Appendix A.

C. Site-specific study. A person shall conduct a study to support the development of a site-specific standard using one of the following procedures:

1. The Recalculation Procedure, Appendix L, pages 90 - 98, Water Quality Standards Handbook, Second Edition, EPA 823-B-94-005b, August 1994. This material is incorporated by reference and does not include any later amendments or editions of the incorporated material. A copy of the incorporated material is available for inspection at the Arizona Department of Environmental Quality, 1110 West Washington Street, Phoenix, Arizona 85007 or: may be obtained from the U.S. Environmental Protection Agency, Office of Water at http://www.epa.gov/waterscience/standards/handbook/ handbookappxL.pdf.

2. Water-Effects Ratio for Metals, Appendix L, pages 1 - 89, Water Quality Standards Handbook, Second Edition, EPA 823-B-94-005b, August 1994. This material is incorporated by reference and does not include any later amendments or editions of the incorporated material. A copy of the incorporated material is available for inspection at the Arizona Department of Environmental Quality, 1110 West Washington Street, Phoenix, Arizona 85007 or: may be obtained from the U.S. Environmental Protection Agency, Office of Water at http://www.epa.gov/waterscience/standards/handbook/ handbookappxL.pdf.

3. Streamlined Water Effects Ratio Procedure for Discharges of Copper, EPA-822-R-01-005, March 2001. This material is incorporated by reference and does not include any later amendments or editions of the incorporated material. A copy of the incorporated material is available for inspection at the Arizona Department of Environmental Quality, 1110 West Washington Street, Phoenix, Arizona 85007 or: may be obtained from the U.S. Environmental Protection Agency, Office of Water at http://www.epa.gov/ost/criteria/copper/copper.pdf.

4. Natural background.

a. A person seeking to develop a site-specific standard based on natural background shall provide a study outline to the Director and obtain the Director's approval before conducting the study.

i. The person may use statistical or modeling approaches to determine natural background concentration.

ii. Modeling approaches include Better Assessment Science Integrating Source and Nonpoint Sources (Basins), Hydrologic Simulation Program-Fortran (HSPF), and Hydrologic Engineering Center (HEC) programs developed by the U.S. Army Corps of Engineers.

b. The Director may establish a site-specific standard at a concentration equal to the natural background concentration.

c. For purposes of this subsection, "natural background" means the concentration of a pollutant in a surface water due only to non-anthropogenic sources.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Section repealed by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). New Section made by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-116. Resource Management Agencies

Nothing in this Article prohibits fisheries management activities by the Arizona Game and Fish Department or the U.S. Fish and Wildlife Service. This Article does not exempt fish hatcheries from AZPDES permit requirements.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-117. Canals and Urban Park Lakes

A. Nothing in this Article prevents the routine physical or mechanical maintenance of canals, drains, and the urban lakes identified in Appendix B. Physical or mechanical maintenance includes dewatering, lining, dredging, and the physical, biological, or chemical control of weeds and algae. Increases in turbidity that result from physical or mechanical maintenance activities are permitted in canals, drains, and the urban lakes identified in Appendix B.

B. The discharge of lubricating oil associated with the start-up of well pumps that discharge to canals is not a violation of R18-11-108(B).

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-118. Dams and Flood Control Structures

Increases in turbidity that result from the routine physical or mechanical maintenance of a dam or flood control structure are not violations of this Article. Nothing in this Article requires the release of water from a dam or a flood control structure.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-119. Natural background

Where the concentration of a pollutant exceeds a water quality standard and the exceedance is not caused by human activity but is due solely to naturally-occurring conditions, the exceedance shall not be considered a violation of the water quality standard.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1).

R18-11-120. Enforcement

A. Any person who causes a violation of a water quality standard or any provision of this Article is subject to the enforcement provisions in A.R.S. Title 49, Chapter 2, Article 4.

B. The Department may establish a numeric water quality standard at a concentration that is below the practical quantitation limit. In such cases, the water quality standard is enforceable at the practical quantitation limit.

C. The Department shall determine compliance with acute aquatic and wildlife criteria from the analytical result of a grab sample. Compliance with chronic aquatic and wildlife criteria shall be determined from the geometric mean of the analytical results of the last four samples taken at least 24 hours apart.

D. A person is not subject to penalties for violation of a water quality standard provided that the person is in compliance with the provisions of a compliance schedule issued under R18-11-121.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1).

R18-11-121. Schedules of Compliance

A. The Director may establish a schedule in an AZPDES permit to bring an existing point source into compliance with a new or revised water quality standard. A compliance schedule in an AZPDES permit for an existing point source, other than a stormwater discharge, shall require the permittee to comply with a discharge limitation based upon a new or revised water quality standard no later than three years after the effective date of the AZPDES permit. The permittee shall demonstrate that all requirements under § 301(b) and § 306 of the Clean Water Act [33 U.S.C. 1311(b) and 1316] are achieved and that the point source cannot comply with a discharge limitation based upon the new or revised water quality standard through the application of existing water pollution control technology, operational changes, or source reduction.

B. The Director may establish a schedule of compliance in an AZPDES permit for a new point source. The first AZPDES permit issued to a new point source may contain a schedule of compliance only when necessary to allow the permittee to attain compliance with a new or revised water quality standard that becomes effective after commencement of construction but less than three years before the discharge begins. For purposes of this subsection, "commencement of construction" means that the owner or operator of the point source has obtained the federal, state, and local approvals or permits necessary to begin physical construction of the point source and either:

1. Onsite physical construction has begun; or

2. The owner or operator has entered into a contract for physical construction of the point source and the contract cannot be cancelled or modified without substantial loss. For purposes of this subsection, "substantial loss" means in excess of 10 percent of the total cost incurred for physical construction.

C. The Director may establish a schedule of compliance in an AZPDES permit for a recommencing point source discharge. The first AZPDES permit issued to a recommencing point source discharger may contain a schedule of compliance only when necessary to attain compliance with a new or revised water quality standard that is effective less than three years before recommencement of the discharge.

D. The Director may establish a schedule to bring a point source discharge of stormwater into compliance with a water quality standard in an AZPDES permit. A compliance schedule for a stormwater discharge shall require implementation of all reasonable and cost-effective best management practices to control the discharge of pollutants in stormwater.

Historical Note

Adopted effective February 18, 1992 (Supp. 92-1). Amended effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-122. Variances

A. The Director shall consider a variance from a water quality standard for a point source discharge if the discharger demonstrates that treatment more advanced than that required to comply with technology-based effluent limitations is necessary to comply with the water quality standard and:

1. It is not technically feasible to achieve compliance within the next five years,

2. The cost of the treatment would result in substantial and widespread economic and social impact, or

3. Human-caused conditions or sources of pollution prevent attainment of the water quality standard and cannot be remedied within the next five years.

B. If the Director grants a variance for a point source discharge:

1. The Director shall issue the variance for a fixed term not to exceed five years,

2. The variance shall apply only on a pollutant-specific basis. The point source discharge shall meet all other applicable water quality standards for which a variance is not granted, and

3. The variance shall not modify a water quality standard. Other point source discharges to the surface water shall meet applicable water quality standards.

C. Upon expiration of a variance, a point source discharger shall either comply with the water quality standard or apply for renewal of the variance. To renew a variance, the applicant shall demonstrate reasonable progress towards compliance with the water quality standard during the term of the variance.

D. The Director shall reevaluate a variance upon the issuance, reissuance, or modification of the AZPDES permit for the point source discharge.

E. A person who seeks a variance from a water quality standard shall submit a written request for a variance to the Director. A request for a variance shall include the following information:

1. Identification of the specific pollutant and water quality standard for which a variance is sought;

2. Identification of the receiving surface water;

3. For an existing point source discharge, a detailed description of the existing discharge control technologies that are used to achieve compliance with applicable water quality standards. For a new point source discharge, a detailed description of the proposed discharge control technologies that will be used to achieve compliance with applicable water quality standards;

4. Documentation that the existing or proposed discharge control technologies will comply with applicable technology-based effluent limitations and that more advanced treatment technology is necessary to achieve compliance with the water quality standard for which a variance is sought;

5. A detailed discussion of the reasons why compliance with the water quality standard cannot be achieved;

6. A detailed discussion of the discharge control technologies that are available for achieving compliance with the water quality standard for which a variance is sought;

7. Documentation of one of the following:

a. That it is not technically feasible to install and operate any of the available discharge control technologies to achieve compliance with the water quality standard for which a variance is sought,

b. That installation and operation of each of the available discharge technologies to achieve compliance with the water quality standard would result in substantial and widespread economic and social impact, or

c. That human-caused conditions or sources of pollution prevent the attainment of the water quality standard for which the variance is sought and it is not possible to remedy the conditions or sources of pollution within the next five years,

8. Documentation that the point source discharger has reduced, to the maximum extent practicable, the discharge of the pollutant for which a variance is sought through implementation of a local pretreatment, source reduction, or waste minimization program; and

9. A detailed description of proposed interim discharge limitations that represent the highest level of treatment achievable by the point source discharger during the term of the variance.

F. The Director shall consider the following factors when deciding whether to grant or deny a variance request:

1. Bioaccumulation,

2. The predicted exposure of biota and the likelihood that resident biota will be adversely affected,

3. The known or predicted safe exposure levels for the pollutant for which the variance is requested, and

4. The likelihood of adverse human health effects.

G. The Director shall issue a public notice and provide an opportunity for a public hearing on whether the request for a variance should be granted or denied under A.A.C. R18-9-A907 and A.A.C. R18-9-A908. An interested party may request a public hearing on a variance under A.A.C. R18-9-A908(B).

H. Any variance granted by the Director is subject to review and approval by the Regional Administrator.

I. Any person who is adversely affected by a decision of the Director to grant or deny a variance and who has exercised any right to comment on the decision may appeal the decision under A.R.S. § 49-321 et seq. and A.R.S. § 41-1092 et seq.

J. The Director shall not grant a variance for a point source discharge to an OAW listed in R18-11-112(G).

Historical Note

Adopted effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

R18-11-123. Discharge Prohibitions

A. The discharge of wastewater to the following surface waters is prohibited:

1. Sabino Canyon Creek;

2. Vekol Wash, upstream of the Ak-Chin Indian Reservation; and

3. Smith Wash, upstream of the Ak-Chin Indian Reservation.

B. The discharge to Lake Powell of human body wastes and the wastes from toilets and other receptacles intended to receive or retain wastes from a vessel is prohibited.

Historical Note

Adopted effective April 24, 1996 (Supp. 96-2). Amended by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4).

Appendix A. Numeric Water Quality Standards

Table 1. Water Quality Criteria By Designated Use

Parameter

CAS

NUMBER

DWS
(µg/L)

FC
(µg/L)

FBC

(µg/L)

PBC

(µg/L)

A&Wc
Acute
(µg/L)

A&Wc
Chronic
(µg/L)

A&Ww
Acute
(µg/L)

A&Ww
Chronic
(µg/L)

A&Wedw
Acute|
(µg/L)

A&Wedw
Chronic
(µg/L)

A&We

Acute

(µg/L)

AgI

(µg/L)

AgL
(µg/L)

Acenaphthene

83329

420

198

56,000

56,000

850

550

850

550

850

550

 

 

 

Acrolein

107028

3.5

1.9

467

467

34

30

34

30

34

30

 

 

 

Acrylonitrile

107131

0.06

0.2

3

37,333

3,800

250

3,800

250

3,800

250

 

 

 

Alachlor

15972608

2

 

9,333

9,333

2,500

170

2,500

170

2,500

170

 

 

 

Aldrin

309002

0.002

0.00005

0.08

28

3

 

3

 

3

 

4.5

0.003

See (b)

Alpha Particles (Gross) Radioactivity

 

15 pCi/L

 

 

 

 

 

 

 

 

 

 

 

 

Ammonia

7664417

 

 

 

 

See (e)
&
Table 25

See (e)
&
Table 26

See (e)
&
Table 25

See (e)
&
Table 26

See (e) &
Table 25

See (e) &
Table 26

 

 

 

Anthracene

120127

2,100

74

280,000

280,000

 

 

 

 

 

 

 

 

 

Antimony

7440360

6 T

640 T

747 T

747 T

88 D

30 D

88 D

30 D

1,000 D

600 D

 

 

 

Arsenic

7440382

10 T

80 T

30 T

280 T

340 D

150 D

340 D

150 D

340 D

150 D

440 D

2,000 T

200 T

Asbestos

1332214

See (a)

 

 

 

 

 

 

 

 

 

 

 

 

Atrazine

1912249

3

 

32,667

32,667

 

 

 

 

 

 

 

 

 

Barium

7440393

2,000 T

 

98,000 T

98,000 T

 

 

 

 

 

 

 

 

 

Benz(a)anthracene

56553

0.005

0.02

0.2

0.2

 

 

 

 

 

 

 

 

 

Benzene

71432

5

114

93

3,733

2,700

180

2,700

180

8,800

560

 

 

 

3, 4 Benzfluoranthene

205992

0.005

0.02

1.9

1.9

 

 

 

 

 

 

 

 

 

Benzidine

92875

0.0002

0.0002

0.01

2,800

1,300

89

1,300

89

1,300

89

10,000

0.01

0.01

Benzo(a)pyrene

50328

0.2

0.02

0.2

0.2

 

 

 

 

 

 

 

 

 

Benzo(k)fluoranthene

207089

0.005

0.02

1.9

1.9

 

 

 

 

 

 

 

 

 

Beryllium

7440417

4 T

84 T

1,867 T

1,867 T

 

 

 

 

 

 

 

 

 

Beta particles and photon emitters

 

4
millirems
/year

 

 

 

 

 

 

 

 

 

 

 

 

Bis(2-chloroethyl) ether

111444

0.03

0.5

1

1

120,000

6,700

120,000

6,700

120,000

6,700

 

 

 

Bis(2-chloroisopropyl) ether

108601

280

3,441

37,333

37,333

 

 

 

 

 

 

 

 

 

Boron

7440428

1,400 T

 

186,667 T

186,667 T

 

 

 

 

 

 

 

1,000 T

 

Bromodichloromethane

75274

TTHM

See (g)

17

18,667

18,667

 

 

 

 

 

 

 

 

 

p-Bromodiphenyl ether

101553

 

 

 

 

180

14

180

14

180

14

 

 

 

Bromoform

75252

TTHM

See (g)

133

180

18,667

15,000

10,000

15,000

10,000

15,000

10,000

 

 

 

Bromomethane

74839

9.8

299

1,307

1,307

5,500

360

5,500

360

5,500

360

 

 

 

Butyl benzyl
phthalate

85687

1,400

386

186,667

186,667

1,700

130

1,700

130

1,700

130

 

 

 

Cadmium

7440439

5 T

84 T

700 T

700 T

See (d) &

Table 2

See (d) &

Table 3

See (d) &

Table 4

See (d) &

Table 5

See (d) &

Table 4

See (d) &

Table 5

See (d) &

Table 6

50

50

Carbofuran

1563662

40

 

4,667

4,667

650

50

650

50

650

50

 

 

 

Carbon tetrachloride

56235

5

2

11

1,307

18,000

1,100

18,000

1,100

18,000

1,100

 

 

 

Chlordane

57749

2

0.0008

4

467

2.4

0.004

2.4

0.2

2.4

0.2

3.2

 

 

Chlorine (total
residual)

7782505

4,000

 

4,000

4,000

19

11

19

11

19

11

 

 

 

Chlorobenzene

108907

100

1,553

18,667

18,667

3,800

260

3,800

260

3,800

260

 

 

 

2-Chloroethyl vinyl ether

110758

 

 

 

 

180,000

9,800

180,000

9,800

180,000

9,800

 

 

 

Chloroform

67663

TTHM
See (g)

2,133

9,333

9,333

14,000

900

14,000

900

14,000

900

 

 

 

p-Chloro-m-cresol

59507

 

 

 

 

15

4.7

15

4.7

15

4.7

48,000

 

 

Chloromethane

74873

 

 

 

 

270,000

15,000

270,000

15,000

270,000

15,000

 

 

 

2-Chloronapthalene

91587

560

317

74,667

74,667

 

 

 

 

 

 

 

 

 

2-Chlorophenol

95578

35

30

4,667

4,667

2,200

150

2,200

150

2,200

150

 

 

 

Chloropyrifos

2921882

21

 

2,800

2,800

0.08

0.04

0.08

0.04

0.08

0.04

 

 

 

Chromium III

16065831

 

75,000 T

1,400,000 T

1,400,000 T

See (d) &

Table 7

See (d) &

Table 8

See (d) &

Table 7

See (d) &

Table 8

See (d) &

Table 7

See (d) &

Table 8

See (d) &

Table 9

 

 

Chromium VI

18540299

21 T

150 T

2,800 T

2,800 T

16 D

11 D

16 D

11 D

16 D

11 D

34 D

 

 

Chromium (Total)

7440473

100 T

 

 

 

 

 

 

 

 

 

 

1,000

1,000

Chrysene

218019

0.005

0.02

19

19

 

 

 

 

 

 

 

 

 

Copper

7440508

1,300 T

 

1,300 T

1,300 T

See (d) &

Table 10

See (d) &

Table 11

See (d) &

Table 10

See (d) &

Table 11

See (d) &

Table 10

See (d) &

Table 11

See (d) &

Table 12

5,000 T

500 T

Cyanide (as free
cyanide)

57125

200 T

16,000 T

18,667 T

18,667 T

22 T

5.2 T

41 T

9.7 T

41 T

9.7 T

84 T

 

200 T

Dalapon

75990

200

8,000

28,000

28,000

 

 

 

 

 

 

 

 

 

Dibenz (ah) anthracene

53703

0.005

0.02

1.9

1.9

 

 

 

 

 

 

 

 

 

Dibromochloromethane

124481

TTHM

See (g)

13

18,667

18,667

 

 

 

 

 

 

 

 

 

1,2-Dibromo-3-chloropropane

96128

0.2

 

 

 

 

 

 

 

 

 

 

 

 

1,2-Dibromoethane

106934

0.05

 

8,400

8,400

 

 

 

 

 

 

 

 

 

Dibutyl phthalate

84742

700

899

93,333

93,333

470

35

470

35

470

35

1,100

 

 

1,2-Dichlorobenzene

95501

600

205

84,000

84,000

790

300

1,200

470

1,200

470

5,900

 

 

1,3-Dichlorobenzene

541731

 

 

 

 

2,500

970

2,500

970

2,500

970

 

 

 

1,4-Dichlorobenzene

106467

75

5,755

373,333

373.333

560

210

2,000

780

2,000

780

6,500

 

 

3,3'-Dichlorobenzidine

91941

0.08

0.03

3

3

 

 

 

 

 

 

 

 

 

p,p'-Dichlorodiphenyltrichloroethane (DDT) and
metabolites (DDD) and (DDE)

50293

0.1

0.0002

4

467

1.1

0.001

1.1

0.001

1.1

0.001

1.1

0.001

0.001

1,2-Dichloroethane

107062

5

37

15

186,667

59,000

41,000

59,000

41,000

59,000

41,000

 

 

 

1,1-Dichloroethylene

75354

7

7,143

46,667

46,667

15,000

950

15,000

950

15,000

950

 

 

 

1,2-cis-Dichloroethylene

156592

70

 

70

70

 

 

 

 

 

 

 

 

 

1,2-trans-Dichloroethylene

156605

100

10,127

18,667

18,667

68,000

3,900

68,000

3,900

68,000

3,900

 

 

 

Dichloromethane

75092

5

593

190

56,000

97,000

5,500

97,000

5,500

97,000

5,500

 

 

 

2,4-Dichlorophenol

120832

21

59

2,800

2,800

1,000

88

1,000

88

1,000

88

 

 

 

2,4-Dichlorophenoxyacetic acid (2,4-D)

94757

70

 

9,333

9,333

 

 

 

 

 

 

 

 

 

1,2-Dichloropropane

78875

5

17,518

84,000

84,000

26,000

9,200

26,000

9,200

26,000

9,200

 

 

 

1,3-Dichloropropene

542756

0.7

42

420

28,000

3,000

1,100

3,000

1,100

3,000

1,100

 

 

 

Dieldrin

60571

0.002

0.00005

0.09

47

0.2

0.06

0.2

0.06

0.2

0.06

4

0.003

See (b)

Diethyl phthalate

84662

5,600

8,767

746,667

746,667

26,000

1,600

26,000

1,600

26,000

1,600

 

 

 

Di (2-ethylhexyl) adipate

103231

400

 

560,000

560,000

 

 

 

 

 

 

 

 

 

Di (2-ethylhexyl) phthalate

117817

6

3

1,200

18,667

400

360

400

360

400

360

3,100

 

 

2,4-Dimethylphenol

105679

140

171

18,667

18,667

1,000

310

1,000

310

1,000

310

150,000

 

 

Dimethyl phthalate

131113

 

 

 

 

17,000

1,000

17,000

1,000

17,000

1,000

 

 

 

4,6-Dinitro-o-cresol

534521

28

582

3,733

3.733

310

24

310

24

310

24

 

 

 

2,4-Dinitrophenol

51285

14

1,067

1,867

1,867

110

9.2

110

9.2

110

9.2

 

 

 

2,4-Dinitrotoluene

121142

14

421

1,867

1,867

14,000

860

14,000

860

14,000

860

 

 

 

2,6-Dinitrotoluene

606202

0.05

 

2

3,733

 

 

 

 

 

 

 

 

 

Di-n-octyl phthalate

117840

2,800

 

373,333

373,333

 

 

 

 

 

 

 

 

 

Dinoseb

88857

7

 

933

933

 

 

 

 

 

 

 

 

 

1,2-Diphenylhydrazine

122667

0.04

0.2

1.8

1.8

130

11

130

11

130

11

 

 

 

Diquat

85007

20

 

2,053

2,053

 

 

 

 

 

 

 

 

 

Endosulfan sulfate

1031078

42

18

5,600

5,600

0.2

0.06

0.2

0.06

0.2

0.06

3

 

 

Endosulfan (Total)

115297

42

18

5,600

5,600

0.2

0.06

0.2

0.06

0.2

0.06

3

 

 

Endothall

145733

100

 

18,667

18,667

 

 

 

 

 

 

 

 

 

Endrin

72208

2

0.06

280

280

0.09

0.04

0.09

0.04

0.09

0.04

0.7

0.004

0.004

Endrin aldehyde

7421933

 

 

 

 

0.09

0.04

0.09

0.04

0.09

0.04

0.7

 

 

Ethylbenzene

100414

700

2,133

93,333

93,333

23,000

1,400

23,000

1,400

23,000

1,400

 

 

 

Fluoranthene

206440

280

28

37,333

37,333

2,000

1,600

2,000

1,600

2,000

1,600

 

 

 

Fluorene

86737

280

1,067

37,333

37,333

 

 

 

 

 

 

 

 

 

Fluoride

7782414

4,000

 

140,000

140,000

 

 

 

 

 

 

 

 

 

Glyphosate

1071836

700

266,667

93,333

93,333

 

 

 

 

 

 

 

 

 

Guthion

86500

 

 

 

 

 

0.01

 

0.01

 

0.01

 

 

 

Heptachlor

76448

0.4

0.00008

0.4

467

0.5

0.004

0.5

0.004

0.6

0.01

0.9

 

 

Heptachlor epoxide

1024573

0.2

0.00004

0.2

12

0.5

0.004

0.5

0.004

0.6

0.01

0.9

 

 

Hexachlorobenzene

118741

1

0.0003

1

747

6

3.7

6

3.7

6

3.7

 

 

 

Hexachlorobutadiene

87683

0.4

18

18

187

45

8.2

45

8.2

45

8.2

 

 

 

Hexachlorocyclohexane alpha

319846

0.006

0.005

0.22

7,467

1,600

130

1,600

130

1,600

130

1,600

 

 

Hexachlorocyclohexane beta

319857

0.02

0.02

0.78

560

1,600

130

1,600

130

1,600

130

1,600

 

 

Hexachlorocyclohexane delta

319868

 

 

 

 

1,600

130

1,600

130

1,600

130

1,600

 

 

Hexachlorocyclohexane gamma (lindane)

58899

0.2

1.8

280

280

1

 

1

 

1

 

11

 

 

Hexachlorocyclopentadiene

77474

50

74

11,200

11,200

3.5

0.3

3.5

0.3

3.5

0.3

 

 

 

Hexachloroethane

67721

2.5

3.3

100

933

490

350

490

350

490

350

850

 

 

Hydrogen sulfide

7783064

 

 

 

 

 

2

See (c)

 

2

See (c)

 

2

See (c)

 

 

 

Indeno (1,2,3-cd) pyrene

193395

0.05

0.2

1.9

1.9

 

 

 

 

 

 

 

 

 

Iron

7439896

 

 

 

 

 

1,000 D

 

1,000 D

 

1,000 D

 

 

 

Isophorone

78591

37

961

1,500

186,667

59,000

43,000

59,000

43,000

59,000

43,000

 

 

 

Lead

7439971

15 T

 

15 T

15 T

See (d) &

Table 13

See (d) &

Table 14

See (d) &

Table 13

See (d) &
Table 14

See (d) &

Table 13

See (d) &

Table 14

See (d) &

Table 15

10,000 T

100 T

Malathion

121755

140

 

18,667

18,667

 

0.1

 

0.1

 

0.1

 

 

 

Manganese

7439965

980

 

130,667

130,667

 

 

 

 

 

 

 

10,000

 

Mercury

7439976

2 T

 

280 T

280 T

2.4 D

0.01 D

2.4 D

0.01 D

2.4 D

0.01 D

5 D

 

10 T

Methoxychlor

72435

40

 

4,667

4,667

 

0.03

 

0.03

 

0.03

 

 

 

Methylmercury

 

 

0.3
mg/kg

 

 

 

 

 

 

 

 

 

 

 

Mirex

2385855

1

 

187

187

 

0.001

 

0.001

 

0.001

 

 

 

Naphthalene

91203

140

1,524

18,667

18,667

1,100

210

3,200

580

3,200

580

 

 

 

Nickel

7440020

210 T

511 T

28,000 T

28,000 T

See (d) &

Table 16

See (d) &

Table 17

See (d) &

Table 16

See (d) &

Table 17

See (d) &

Table 16

See (d) &

Table 17

See (d) &

Table 18

 

 

Nitrate

14797558

10,000

 

3,733,333

3,733,333

 

 

 

 

 

 

 

 

 

Nitrite

14797650

1,000

 

233,333

233,333

 

 

 

 

 

 

 

 

 

Nitrate + Nitrite

 

10,000

 

 

 

 

 

 

 

 

 

 

 

 

Nitrobenzene

98953

3.5

138

467

467

1,300

850

1,300

850

1,300

850

 

 

 

p-Nitrophenol

100027

 

 

 

 

4,100

3,000

4,100

3,000

4,100

3,000

 

 

 

N-nitrosodimethylamine

62759

0.001

3

0.03

0.03

 

 

 

 

 

 

 

 

 

N-nitrosodi-n-phenylamine

86306

7.1

6

290

290

2,900

200

2,900

200

2,900

200

 

 

 

N-nitrosodi-n-propylamine

621647

0.005

0.5

0.2

88,667

 

 

 

 

 

 

 

 

 

Oxamyl

23135220

200

 

23,333

23,333

 

 

 

 

 

 

 

 

 

Parathion

56382

 

 

 

 

0.07

0.01

0.07

0.01

0.07

0.01

 

 

 

Paraquat

1910425

32

 

4,200

4,200

100

54

100

54

100

54

 

 

 

Pentachlorophenol

87865

1

370

12

28,000

See (e) & Table 22

See (e) & Table 23

See (e) & Table 22

See (e) & Table 23

See (e) & Table 22

See (e) & Table 23

See (e) & Table 24

 

 

Permethrin

52645531

350

 

46,667

46,667

0.3

0.2

0.3

0.2

0.3

0.2

 

 

 

Phenanthrene

85018

 

 

 

 

30

6.3

30

6.3

30

6.3

 

 

 

Phenol

108952

2,100

37

280,000

280,000

5,100

730

7,000

1,000

7,000

1,000

180,000

 

 

Picloram

1918021

500

2,710

65,333

65,333

 

 

 

 

 

 

 

 

 

Polychlorinatedbiphenyls (PCBs)

1336363

0.5

0.00006

19

19

2

0.01

2

0.02

2

0.02

11

0.001

0.001

Pyrene

129000

210

800

28,000

28,000

 

 

 

 

 

 

 

 

 

Radium 226 + Radium 228

 

5 pCi/L

 

 

 

 

 

 

 

 

 

 

 

 

Selenium

7782492

50 T

667 T

4,667 T

4,667 T

 

2 T

 

2 T

 

2 T

33 T

20 T

50 T

Silver

7440224

35 T

8,000 T

4,667 T

4,667 T

See (d) & Table 19

 

See (d) & Table 19

 

See (d) & Table 19

 

See (d) & Table 19

 

 

Simazine

112349

4

 

4,667

4,667

 

 

 

 

 

 

 

 

 

Styrene

100425

100

 

186,667

186,667

5,600

370

5,600

370

5,600

370

 

 

 

2,3,7,8-Tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD)

1746016

0.00003

5x10-9

0.00003

0.0009

0.01

0.005

0.01

0.005

0.01

0.005

0.1

 

 

1,1,2,2-Tetrachloroethane

79345

0.2

4

7

93,333

4,700

3,200

4,700

3,200

4,700

3,200

 

 

 

Tetrachloroethylene

127184

5

261

9,333

9,333

2,600

280

6,500

680

6,500

680

15,000

 

 

Thallium

7440280

2 T

1 T

75 T

75 T

700 D

150 D

700 D

150 D

700 D

150 D

 

 

 

Toluene

108883

1,000

29,907

373,333

373,333

8,700

180

8,700

180

8,700

180

 

 

 

Toxaphene

8001352

3

0.0003

1.3

933

0.7

0.0002

0.7

0.0002

0.7

0.0002

11

0.005

0.005

Tributylin

 

 

 

 

 

0.5

0.07

0.5

0.07

0.5

0.07

 

 

 

1,2,4-Trichlorobenzene

120821

70

70

9,333

9,333

750

130

1,700

300

1,700

300

 

 

 

1,1,1-Trichloroethane

71556

200

428,571

1,866,667

1,866,667

2,600

1,600

2,600

1,600

2,600

1,600

 

1,000

 

1,1,2-Trichloroethane

79005

5

16

25

3,733

18,000

12,000

18,000

12,000

18,000

12,000

 

 

 

Trichloroethylene

79016

5

29

280,000

280

20,000

1,300

20,000

1,300

20,000

1,300

 

 

 

2,4,6-Trichlorophenol

88062

3.2

2

130

130

160

25

160

25

160

25

3,000

 

 

2,4,5-Trichlorophenoxy proprionic acid (2,4,5-TP)

93721

50

 

7,467

7,467

 

 

 

 

 

 

 

 

 

Trihalomethanes (T)

 

80

 

 

 

 

 

 

 

 

 

 

 

 

Uranium

7440611

30 D

 

2,800

2,800

 

 

 

 

 

 

 

 

 

Vinyl chloride

75014

2

5

2

2,800

 

 

 

 

 

 

 

 

 

Xylenes (T)

1330207

10,000

 

186,667

186,667

 

 

 

 

 

 

 

 

 

Zinc

7440666

2,100 T

5,106 T

280,000 T

280,000 T

See (d) &

Table 20

See (d) &

Table 20

See (d) &

Table 20

See (d) &

Table 20

See (d) &

Table 20

See (d) &

Table 20

See (d) &

Table 21

10,000 T

25,000 T

Footnotes

a. The asbestos standard is 7 million fibers (longer than 10 micrometers) per liter.

b. The aldrin/dieldrin standard is exceeded when the sum of the two compounds exceeds 0.003 µg/L.

c. In lakes, the acute criteria for hydrogen sulfide apply only to water samples taken from the epilimnion, or the upper layer of a lake or reservoir.

d. Hardness, expressed as mg/L CaCO3, is determined according to the following criteria:

i. If the receiving water body has an A&Wc or A&Ww designated use, then hardness is based on the hardness of the receiving water body from a sample taken at the same time that the sample for the metal is taken, except that the hardness may not exceed 400 mg/L CaCO3.

ii. If the receiving water has an A&Wedw or A&We designated use, then the hardness is based on the hardness of the effluent from a sample taken at the same time that the sample for the metal is taken, except that the hardness may not exceed 400 mg/L CaCO3.

e. pH is determined according to the following criteria:

i. If the receiving water has an A&Wc or A&Ww designated use, then pH is based on the pH of the receiving water body from a sample taken at the same time that the sample for pentachlorophenol or ammonia is taken.

ii. If the receiving water body has an A&Wedw or A&We designated use, then the pH is based on the pH of the effluent from a sample taken at the same time that the sample for pentachlorophenol or ammonia is taken.

f. Table 1 abbreviations.

i. µg/L = micrograms per liter,

ii. mg/kg = milligrams per kilogram,

iii. pCi/L = picocuries per liter,

iv. D = dissolved,

v. T = total recoverable,

vi. TTHM indicates that the chemical is a trihalomethane.

g. The total trihalomethane (TTHM) standard is exceeded when the sum of these four compounds exceeds 80 µg/L, as a rolling annual average.

Table 2. Acute Water Quality Standards for Dissolved Cadmium
Aquatic and Wildlife coldwater

 

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

1

0.02

41

0.85

81

1.64

121

2.42

161

3.20

201

3.97

241

4.73

281

5.49

321

6.25

361

7.00

2

0.04

42

0.87

82

1.66

122

2.44

162

3.22

202

3.99

242

4.75

282

5.51

322

6.27

362

7.02

3

0.07

43

0.89

83

1.68

123

2.46

163

3.24

203

4.01

243

4.77

283

5.53

323

6.29

363

7.04

4

0.09

44

0.91

84

1.70

124

2.48

164

3.26

204

4.03

244

4.79

284

5.55

324

6.31

364

7.06

5

0.11

45

0.93

85

1.72

125

2.50

165

3.28

205

4.04

245

4.81

285

5.57

325

6.33

365

7.08

6

0.13

46

0.95

86

1.74

126

2.52

166

3.30

206

4.06

246

4.83

286

5.59

326

6.34

366

7.10

7

0.15

47

0.97

87

1.76

127

2.54

167

3.31

207

4.08

247

4.85

287

5.61

327

6.36

367

7.12

8

0.17

48

0.99

88

1.78

128

2.56

168

3.33

208

4.10

248

4.87

288

5.63

328

6.38

368

7.14

9

0.19

49

1.01

89

1.80

129

2.58

169

3.35

209

4.12

249

4.88

289

5.64

329

6.40

369

7.15

10

0.21

50

1.03

90

1.82

130

2.60

170

3.37

210

4.14

250

4.90

290

5.66

330

6.42

370

7.17

11

0.23

51

1.05

91

1.84

131

2.62

171

3.39

211

4.16

251

4.92

291

5.68

331

6.44

371

7.19

12

0.26

52

1.07

92

1.86

132

2.64

172

3.41

212

4.18

252

4.94

292

5.70

332

6.46

372

7.21

13

0.28

53

1.09

93

1.88

133

2.66

173

3.43

213

4.20

253

4.96

293

5.72

333

6.48

373

7.23

14

0.30

54

1.11

94

1.90

134

2.68

174

3.45

214

4.22

254

4.98

294

5.74

334

6.50

374

7.25

15

0.32

55

1.13

95

1.92

135

2.70

175

3.47

215

4.24

255

5.00

295

5.76

335

6.51

375

7.27

16

0.34

56

1.15

96

1.94

136

2.72

176

3.49

216

4.26

256

5.02

296

5.78

336

6.53

376

7.29

17

0.36

57

1.17

97

1.95

137

2.73

177

3.51

217

4.27

257

5.04

297

5.80

337

6.55

377

7.30

18

0.38

58

1.19

98

1.97

138

2.75

178

3.53

218

4.29

258

5.06

298

5.81

338

6.57

378

7.32

19

0.40

59

1.21

99

1.99

139

2.77

179

3.55

219

4.31

259

5.08

299

5.83

339

6.59

379

7.34

20

0.42

60

1.23

100

2.01

140

2.79

180

3.56

220

4.33

260

5.09

300

5.85

340

6.61

380

7.36

21

0.44

61

1.25

101

2.03

141

2.81

181

3.58

221

4.35

261

5.11

301

5.87

341

6.63

381

7.38

22

0.46

62

1.26

102

2.05

142

2.83

182

3.60

222

4.37

262

5.13

302

5.89

342

6.65

382

7.40

23

0.48

63

1.28

103

2.07

143

2.85

183

3.62

223

4.39

263

5.15

303

5.91

343

6.66

383

7.42

24

0.50

64

1.30

104

2.09

144

2.87

184

3.64

224

4.41

264

5.17

304

5.93

344

6.68

384

7.44

25

0.52

65

1.32

105

2.11

145

2.89

185

3.66

225

4.43

265

5.19

305

5.95

345

6.70

385

7.45

26

0.54

66

1.34

106

2.13

146

2.91

186

3.68

226

4.45

266

5.21

306

5.97

346

6.72

386

7.47

27

0.56

67

1.36

107

2.15

147

2.93

187

3.70

227

4.47

267

5.23

307

5.99

347

6.74

387

7.49

28

0.58

68

1.38

108

2.17

148

2.95

188

3.72

228

4.48

268

5.25

308

6.00

348

6.76

388

7.51

29

0.60

69

1.40

109

2.19

149

2.97

189

3.74

229

4.50

269

5.27

309

6.02

349

6.78

389

7.53

30

0.62

70

1.42

110

2.21

150

2.99

190

3.76

230

4.52

270

5.28

310

6.04

350

6.80

390

7.55

31

0.64

71

1.44

111

2.23

151

3.01

191

3.78

231

4.54

271

5.30

311

6.06

351

6.82

391

7.57

32

0.66

72

1.46

112

2.25

152

3.03

192

3.80

232

4.56

272

5.32

312

6.08

352

6.83

392

7.59

33

0.68

73

1.48

113

2.27

153

3.04

193

3.81

233

4.58

273

5.34

313

6.10

353

6.85

393

7.60

34

0.70

74

1.50

114

2.29

154

3.06

194

3.83

234

4.60

274

5.36

314

6.12

354

6.87

394

7.62

35

0.72

75

1.52

115

2.31

155

3.08

195

3.85

235

4.62

275

5.38

315

6.14

355

6.89

395

7.64

36

0.75

76

1.54

116

2.33

156

3.10

196

3.87

236

4.64

276

5.40

316

6.16

356

6.91

396

7.66

37

0.77

77

1.56

117

2.35

157

3.12

197

3.89

237

4.66

277

5.42

317

6.17

357

6.93

397

7.68

38

0.79

78

1.58

118

2.37

158

3.14

198

3.91

238

4.68

278

5.44

318

6.19

358

6.95

398

7.70

39

0.81

79

1.60

119

2.38

159

3.16

199

3.93

239

4.69

279

5.45

319

6.21

359

6.97

399

7.72

40

0.83

80

1.62

120

2.40

160

3.18

200

3.95

240

4.71

280

5.47

320

6.23

360

6.98

400

7.74

 

Table 3. Chronic Water Quality Standards for Dissolved Cadmium
Aquatic and Wildlife coldwater

 

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

1

0.01

41

0.13

81

0.21

121

0.28

161

0.34

201

0.40

241

0.45

281

0.50

321

0.55

361

0.60

2

0.02

42

0.13

82

0.21

122

0.28

162

0.34

202

0.40

242

0.45

282

0.50

322

0.55

362

0.60

3

0.02

43

0.14

83

0.22

123

0.28

163

0.35

203

0.40

243

0.46

283

0.51

323

0.55

363

0.60

4

0.03

44

0.14

84

0.22

124

0.29

164

0.35

204

0.40

244

0.46

284

0.51

324

0.56

364

0.60

5

0.03

45

0.14

85

0.22

125

0.29

165

0.35

205

0.40

245

0.46

285

0.51

325

0.56

365

0.60

6

0.03

46

0.14

86

0.22

126

0.29

166

0.35

206

0.41

246

0.46

286

0.51

326

0.56

366

0.60

7

0.04

47

0.15

87

0.22

127

0.29

167

0.35

207

0.41

247

0.46

287

0.51

327

0.56

367

0.61

8

0.04

48

0.15

88

0.23

128

0.29

168

0.35

208

0.41

248

0.46

288

0.51

328

0.56

368

0.61

9

0.05

49

0.15

89

0.23

129

0.29

169

0.35

209

0.41

249

0.46

289

0.51

329

0.56

369

0.61

10

0.05

50

0.15

90

0.23

130

0.30

170

0.36

210

0.41

250

0.46

290

0.51

330

0.56

370

0.61

11

0.05

51

0.15

91

0.23

131

0.30

171

0.36

211

0.41

251

0.47

291

0.52

331

0.56

371

0.61

12

0.06

52

0.16

92

0.23

132

0.30

172

0.36

212

0.41

252

0.47

292

0.52

332

0.57

372

0.61

13

0.06

53

0.16

93

0.23

133

0.30

173

0.36

213

0.42

253

0.47

293

0.52

333

0.57

373

0.61

14

0.06

54

0.16

94

0.24

134

0.30

174

0.36

214

0.42

254

0.47

294

0.52

334

0.57

374

0.61

15

0.07

55

0.16

95

0.24

135

0.30

175

0.36

215

0.42

255

0.47

295

0.52

335

0.57

375

0.62

16

0.07

56

0.16

96

0.24

136

0.30

176

0.36

216

0.42

256

0.47

296

0.52

336

0.57

376

0.62

17

0.07

57

0.17

97

0.24

137

0.31

177

0.37

217

0.42

257

0.47

297

0.52

337

0.57

377

0.62

18

0.07

58

0.17

98

0.24

138

0.31

178

0.37

218

0.42

258

0.47

298

0.52

338

0.57

378

0.62

19

0.08

59

0.17

99

0.24

139

0.31

179

0.37

219

0.42

259

0.48

299

0.53

339

0.57

379

0.62

20

0.08

60

0.17

100

0.25

140

0.31

180

0.37

220

0.43

260

0.48

300

0.53

340

0.57

380

0.62

21

0.08

61

0.17

101

0.25

141

0.31

181

0.37

221

0.43

261

0.48

301

0.53

341

0.58

381

0.62

22

0.09

62

0.18

102

0.25

142

0.31

182

0.37

222

0.43

262

0.48

302

0.53

342

0.58

382

0.62

23

0.09

63

0.18

103

0.25

143

0.32

183

0.37

223

0.43

263

0.48

303

0.53

343

0.58

383

0.62

24

0.09

64

0.18

104

0.25

144

0.32

184

0.38

224

0.43

264

0.48

304

0.53

344

0.58

384

0.63

25

0.09

65

0.18

105

0.25

145

0.32

185

0.38

225

0.43

265

0.48

305

0.53

345

0.58

385

0.63

26

0.10

66

0.18

106

0.26

146

0.32

186

0.38

226

0.43

266

0.48

306

0.53

346

0.58

386

0.63

27

0.10

67

0.19

107

0.26

147

0.32

187

0.38

227

0.43

267

0.49

307

0.54

347

0.58

387

0.63

28

0.10

68

0.19

108

0.26

148

0.32

188

0.38

228

0.44

268

0.49

308

0.54

348

0.58

388

0.63

29

0.10

69

0.19

109

0.26

149

0.32

189

0.38

229

0.44

269

0.49

309

0.54

349

0.59

389

0.63

30

0.11

70

0.19

110

0.26

150

0.33

190

0.38

230

0.44

270

0.49

310

0.54

350

0.59

390

0.63

31

0.11

71

0.19

111

0.26

151

0.33

191

0.39

231

0.44

271

0.49

311

0.54

351

0.59

391

0.63

32

0.11

72

0.20

112

0.27

152

0.33

192

0.39

232

0.44

272

0.49

312

0.54

352

0.59

392

0.63

33

0.11

73

0.20

113

0.27

153

0.33

193

0.39

233

0.44

273

0.49

313

0.54

353

0.59

393

0.64

34

0.12

74

0.20

114

0.27

154

0.33

194

0.39

234

0.44

274

0.50

314

0.54

354

0.59

394

0.64

35

0.12

75

0.20

115

0.27

155

0.33

195

0.39

235

0.45

275

0.50

315

0.55

355

0.59

395

0.64

36

0.12

76

0.20

116

0.27

156

0.33

196

0.39

236

0.45

276

0.50

316

0.55

356

0.59

396

0.64

37

0.12

77

0.21

117

0.27

157

0.34

197

0.39

237

0.45

277

0.50

317

0.55

357

0.59

397

0.64

38

0.13

78

0.21

118

0.28

158

0.34

198

0.40

238

0.45

278

0.50

318

0.55

358

0.60

398

0.64

39

0.13

79

0.21

119

0.28

159

0.34

199

0.40

239

0.45

279

0.50

319

0.55

359

0.60

399

0.64

40

0.13

80

0.21

120

0.28

160

0.34

200

0.40

240

0.45

280

0.50

320

0.55

360

0.60

400

0.64

 

Table 4. Acute Water Quality Standards for Dissolved Cadmium
Aquatic and Wildlife warmwater, and edw

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

1

0.09

41

3.30

81

6.41

121

9.47

161

12.50

201

15.51

241

18.49

281

21.47

321

24.42

361

27.37

2

0.17

42

3.38

82

6.49

122

9.55

162

12.58

202

15.58

242

18.57

282

21.54

322

24.50

362

27.44

3

0.26

43

3.46

83

6.57

123

9.62

163

12.65

203

15.66

243

18.64

283

21.61

323

24.57

363

27.52

4

0.34

44

3.54

84

6.64

124

9.70

164

12.73

204

15.73

244

18.72

284

21.69

324

24.64

364

27.59

5

0.42

45

3.62

85

6.72

125

9.78

165

12.80

205

15.81

245

18.79

285

21.76

325

24.72

365

27.66

6

0.51

46

3.70

86

6.80

126

9.85

166

12.88

206

15.88

246

18.87

286

21.84

326

24.79

366

27.74

7

0.59

47

3.77

87

6.87

127

9.93

167

12.95

207

15.96

247

18.94

287

21.91

327

24.87

367

27.81

8

0.67

48

3.85

88

6.95

128

10.00

168

13.03

208

16.03

248

19.02

288

21.98

328

24.94

368

27.88

9

0.75

49

3.93

89

7.03

129

10.08

169

13.10

209

16.11

249

19.09

289

22.06

329

25.01

369

27.96

10

0.83

50

4.01

90

7.10

130

10.16

170

13.18

210

16.18

250

19.16

290

22.13

330

25.09

370

28.03

11

0.92

51

4.09

91

7.18

131

10.23

171

13.25

211

16.26

251

19.24

291

22.21

331

25.16

371

28.10

12

1.00

52

4.17

92

7.26

132

10.31

172

13.33

212

16.33

252

19.31

292

22.28

332

25.23

372

28.18

13

1.08

53

4.24

93

7.33

133

10.38

173

13.40

213

16.40

253

19.39

293

22.35

333

25.31

373

28.25

14

1.16

54

4.32

94

7.41

134

10.46

174

13.48

214

16.48

254

19.46

294

22.43

334

25.38

374

28.32

15

1.24

55

4.40

95

7.49

135

10.53

175

13.56

215

16.55

255

19.54

295

22.50

335

25.46

375

28.40

16

1.32

56

4.48

96

7.56

136

10.61

176

13.63

216

16.63

256

19.61

296

22.58

336

25.53

376

28.47

17

1.40

57

4.55

97

7.64

137

10.69

177

13.71

217

16.70

257

19.68

297

22.65

337

25.60

377

28.54

18

1.48

58

4.63

98

7.72

138

10.76

178

13.78

218

16.78

258

19.76

298

22.72

338

25.68

378

28.62

19

1.56

59

4.71

99

7.79

139

10.84

179

13.86

219

16.85

259

19.83

299

22.80

339

25.75

379

28.69

20

1.64

60

4.79

100

7.87

140

10.91

180

13.93

220

16.93

260

19.91

300

22.87

340

25.82

380

28.77

21

1.72

61

4.87

101

7.95

141

10.99

181

14.01

221

17.00

261

19.98

301

22.95

341

25.90

381

28.84

22

1.80

62

4.94

102

8.02

142

11.07

182

14.08

222

17.08

262

20.06

302

23.02

342

25.97

382

28.91

23

1.88

63

5.02

103

8.10

143

11.14

183

14.16

223

17.15

263

20.13

303

23.09

343

26.05

383

28.99

24

1.96

64

5.10

104

8.18

144

11.22

184

14.23

224

17.23

264

20.20

304

23.17

344

26.12

384

29.06

25

2.04

65

5.18

105

8.25

145

11.29

185

14.31

225

17.30

265

20.28

305

23.24

345

26.19

385

29.13

26

2.12

66

5.25

106

8.33

146

11.37

186

14.38

226

17.38

266

20.35

306

23.32

346

26.27

386

29.21

27

2.20

67

5.33

107

8.40

147

11.44

187

14.46

227

17.45

267

20.43

307

23.39

347

26.34

387

29.28

28

2.28

68

5.41

108

8.48

148

11.52

188

14.53

228

17.53

268

20.50

308

23.46

348

26.41

388

29.35

29

2.36

69

5.49

109

8.56

149

11.59

189

14.61

229

17.60

269

20.58

309

23.54

349

26.49

389

29.43

30

2.44

70

5.56

110

8.63

150

11.67

190

14.68

230

17.67

270

20.65

310

23.61

350

26.56

390

29.50

31

2.52

71

5.64

111

8.71

151

11.75

191

14.76

231

17.75

271

20.72

311

23.69

351

26.63

391

29.57

32

2.60

72

5.72

112

8.79

152

11.82

192

14.83

232

17.82

272

20.80

312

23.76

352

26.71

392

29.65

33

2.67

73

5.79

113

8.86

153

11.90

193

14.91

233

17.90

273

20.87

313

23.83

353

26.78

393

29.72

34

2.75

74

5.87

114

8.94

154

11.97

194

14.98

234

17.97

274

20.95

314

23.91

354

26.85

394

29.79

35

2.83

75

5.95

115

9.01

155

12.05

195

15.06

235

18.05

275

21.02

315

23.98

355

26.93

395

29.87

36

2.91

76

6.03

116

9.09

156

12.12

196

15.13

236

18.12

276

21.09

316

24.05

356

27.00

396

29.94

37

2.99

77

6.10

117

9.17

157

12.20

197

15.21

237

18.20

277

21.17

317

24.13

357

27.08

397

30.01

38

3.07

78

6.18

118

9.24

158

12.27

198

15.28

238

18.27

278

21.24

318

24.20

358

27.15

398

30.08

39

3.15

79

6.26

119

9.32

159

12.35

199

15.36

239

18.35

279

21.32

319

24.28

359

27.22

399

30.16

40

3.23

80

6.33

120

9.40

160

12.43

200

15.43

240

18.42

280

21.39

320

24.35

360

27.30

400

30.23

 

Table 5. Chronic Water Quality Standards for Dissolved Cadmium
Aquatic and Wildlife warmwater, and edw

 

Hard
mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

1

0.02

41

0.30

81

0.48

121

0.64

161

0.78

201

0.91

241

1.03

281

1.15

321

1.26

361

1.37

2

0.04

42

0.31

82

0.49

122

0.64

162

0.78

202

0.91

242

1.04

282

1.15

322

1.26

362

1.37

3

0.05

43

0.31

83

0.49

123

0.65

163

0.79

203

0.92

243

1.04

283

1.16

323

1.27

363

1.37

4

0.06

44

0.32

84

0.50

124

0.65

164

0.79

204

0.92

244

1.04

284

1.16

324

1.27

364

1.38

5

0.07

45

0.32

85

0.50

125

0.66

165

0.79

205

0.92

245

1.05

285

1.16

325

1.27

365

1.38

6

0.08

46

0.33

86

0.51

126

0.66

166

0.80

206

0.93

246

1.05

286

1.16

326

1.27

366

1.38

7

0.09

47

0.33

87

0.51

127

0.66

167

0.80

207

0.93

247

1.05

287

1.17

327

1.28

367

1.38

8

0.10

48

0.34

88

0.51

128

0.67

168

0.80

208

0.93

248

1.05

288

1.17

328

1.28

368

1.39

9

0.10

49

0.34

89

0.52

129

0.67

169

0.81

209

0.94

249

1.06

289

1.17

329

1.28

369

1.39

10

0.11

50

0.35

90

0.52

130

0.67

170

0.81

210

0.94

250

1.06

290

1.17

330

1.28

370

1.39

11

0.12

51

0.35

91

0.53

131

0.68

171

0.81

211

0.94

251

1.06

291

1.18

331

1.29

371

1.39

12

0.13

52

0.36

92

0.53

132

0.68

172

0.82

212

0.95

252

1.07

292

1.18

332

1.29

372

1.40

13

0.14

53

0.36

93

0.53

133

0.68

173

0.82

213

0.95

253

1.07

293

1.18

333

1.29

373

1.40

14

0.14

54

0.37

94

0.54

134

0.69

174

0.82

214

0.95

254

1.07

294

1.19

334

1.30

374

1.40

15

0.15

55

0.37

95

0.54

135

0.69

175

0.83

215

0.95

255

1.07

295

1.19

335

1.30

375

1.40

16

0.16

56

0.38

96

0.55

136

0.69

176

0.83

216

0.96

256

1.08

296

1.19

336

1.30

376

1.41

17

0.16

57

0.38

97

0.55

137

0.70

177

0.83

217

0.96

257

1.08

297

1.19

337

1.30

377

1.41

18

0.17

58

0.38

98

0.55

138

0.70

178

0.84

218

0.96

258

1.08

298

1.20

338

1.31

378

1.41

19

0.18

59

0.39

99

0.56

139

0.71

179

0.84

219

0.97

259

1.09

299

1.20

339

1.31

379

1.41

20

0.18

60

0.39

100

0.56

140

0.71

180

0.84

220

0.97

260

1.09

300

1.20

340

1.31

380

1.42

21

0.19

61

0.40

101

0.57

141

0.71

181

0.85

221

0.97

261

1.09

301

1.21

341

1.31

381

1.42

22

0.20

62

0.40

102

0.57

142

0.72

182

0.85

222

0.98

262

1.10

302

1.21

342

1.32

382

1.42

23

0.20

63

0.41

103

0.57

143

0.72

183

0.85

223

0.98

263

1.10

303

1.21

343

1.32

383

1.42

24

0.21

64

0.41

104

0.58

144

0.72

184

0.86

224

0.98

264

1.10

304

1.21

344

1.32

384

1.43

25

0.21

65

0.42

105

0.58

145

0.73

185

0.86

225

0.99

265

1.10

305

1.22

345

1.32

385

1.43

26

0.22

66

0.42

106

0.58

146

0.73

186

0.86

226

0.99

266

1.11

306

1.22

346

1.33

386

1.43

27

0.23

67

0.42

107

0.59

147

0.73

187

0.87

227

0.99

267

1.11

307

1.22

347

1.33

387

1.43

28

0.23

68

0.43

108

0.59

148

0.74

188

0.87

228

0.99

268

1.11

308

1.22

348

1.33

388

1.44

29

0.24

69

0.43

109

0.60

149

0.74

189

0.87

229

1.00

269

1.12

309

1.23

349

1.34

389

1.44

30

0.24

70

0.44

110

0.60

150

0.74

190

0.88

230

1.00

270

1.12

310

1.23

350

1.34

390

1.44

31

0.25

71

0.44

111

0.60

151

0.75

191

0.88

231

1.00

271

1.12

311

1.23

351

1.34

391

1.44

32

0.25

72

0.45

112

0.61

152

0.75

192

0.88

232

1.01

272

1.12

312

1.24

352

1.34

392

1.45

33

0.26

73

0.45

113

0.61

153

0.75

193

0.89

233

1.01

273

1.13

313

1.24

353

1.35

393

1.45

34

0.26

74

0.46

114

0.61

154

0.76

194

0.89

234

1.01

274

1.13

314

1.24

354

1.35

394

1.45

35

0.27

75

0.46

115

0.62

155

0.76

195

0.89

235

1.02

275

1.13

315

1.24

355

1.35

395

1.46

36

0.28

76

0.46

116

0.62

156

0.76

196

0.90

236

1.02

276

1.14

316

1.25

356

1.35

396

1.46

37

0.28

77

0.47

117

0.63

157

0.77

197

0.90

237

1.02

277

1.14

317

1.25

357

1.36

397

1.46

38

0.29

78

0.47

118

0.63

158

0.77

198

0.90

238

1.02

278

1.14

318

1.25

358

1.36

398

1.46

39

0.29

79

0.48

119

0.63

159

0.77

199

0.91

239

1.03

279

1.14

319

1.26

359

1.36

399

1.47

40

0.30

80

0.48

120

0.64

160

0.78

200

0.91

240

1.03

280

1.15

320

1.26

360

1.36

400

1.47

 

Table 6. Acute Water Quality Standards for Dissolved Cadmium
Aquatic and Wildlife ephemeral

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

1

0.25

41

9.58

81

18.58

121

27.45

161

36.23

201

44.94

241

53.59

281

62.21

321

70.78

361

79.32

2

0.50

42

9.80

82

18.80

122

27.67

162

36.45

202

45.15

242

53.81

282

62.42

322

70.99

362

79.53

3

0.75

43

10.03

83

19.03

123

27.89

163

36.66

203

45.37

243

54.03

283

62.64

323

71.21

363

79.74

4

0.99

44

10.26

84

19.25

124

28.11

164

36.88

204

45.59

244

54.24

284

62.85

324

71.42

364

79.95

5

1.23

45

10.49

85

19.47

125

28.33

165

37.10

205

45.81

245

54.46

285

63.06

325

71.63

365

80.17

6

1.47

46

10.71

86

19.69

126

28.55

166

37.32

206

46.02

246

54.67

286

63.28

326

71.85

366

80.38

7

1.71

47

10.94

87

19.92

127

28.77

167

37.54

207

46.24

247

54.89

287

63.49

327

72.06

367

80.59

8

1.95

48

11.17

88

20.14

128

28.99

168

37.76

208

46.46

248

55.10

288

63.71

328

72.27

368

80.81

9

2.18

49

11.39

89

20.36

129

29.21

169

37.97

209

46.67

249

55.32

289

63.92

329

72.49

369

81.02

10

2.42

50

11.62

90

20.58

130

29.43

170

38.19

210

46.89

250

55.54

290

64.14

330

72.70

370

81.23

11

2.65

51

11.84

91

20.81

131

29.65

171

38.41

211

47.11

251

55.75

291

64.35

331

72.92

371

81.44

12

2.89

52

12.07

92

21.03

132

29.87

172

38.63

212

47.32

252

55.97

292

64.57

332

73.13

372

81.66

13

3.13

53

12.30

93

21.25

133

30.09

173

38.85

213

47.54

253

56.18

293

64.78

333

73.34

373

81.87

14

3.36

54

12.52

94

21.47

134

30.31

174

39.06

214

47.76

254

56.40

294

65.00

334

73.56

374

82.08

15

3.59

55

12.75

95

21.70

135

30.53

175

39.28

215

47.97

255

56.61

295

65.21

335

73.77

375

82.30

16

3.83

56

12.97

96

21.92

136

30.75

176

39.50

216

48.19

256

56.83

296

65.42

336

73.98

376

82.51

17

4.06

57

13.20

97

22.14

137

30.97

177

39.72

217

48.41

257

57.04

297

65.64

337

74.20

377

82.72

18

4.29

58

13.42

98

22.36

138

31.19

178

39.94

218

48.62

258

57.26

298

65.85

338

74.41

378

82.93

19

4.53

59

13.65

99

22.58

139

31.41

179

40.15

219

48.84

259

57.48

299

66.07

339

74.62

379

83.15

20

4.76

60

13.87

100

22.81

140

31.63

180

40.37

220

49.06

260

57.69

300

66.28

340

74.84

380

83.36

21

4.99

61

14.10

101

23.03

141

31.85

181

40.59

221

49.27

261

57.91

301

66.50

341

75.05

381

83.57

22

5.22

62

14.32

102

23.25

142

32.07

182

40.81

222

49.49

262

58.12

302

66.71

342

75.26

382

83.78

23

5.45

63

14.55

103

23.47

143

32.29

183

41.03

223

49.71

263

58.34

303

66.93

343

75.48

383

84.00

24

5.68

64

14.77

104

23.69

144

32.50

184

41.24

224

49.92

264

58.55

304

67.14

344

75.69

384

84.21

25

5.91

65

15.00

105

23.91

145

32.72

185

41.46

225

50.14

265

58.77

305

67.35

345

75.90

385

84.42

26

6.14

66

15.22

106

24.13

146

32.94

186

41.68

226

50.35

266

58.98

306

67.57

346

76.12

386

84.64

27

6.37

67

15.45

107

24.36

147

33.16

187

41.90

227

50.57

267

59.20

307

67.78

347

76.33

387

84.85

28

6.60

68

15.67

108

24.58

148

33.38

188

42.11

228

50.79

268

59.41

308

68.00

348

76.54

388

85.06

29

6.83

69

15.90

109

24.80

149

33.60

189

42.33

229

51.00

269

59.63

309

68.21

349

76.76

389

85.27

30

7.06

70

16.12

110

25.02

150

33.82

190

42.55

230

51.22

270

59.84

310

68.42

350

76.97

390

85.49

31

7.29

71

16.34

111

25.24

151

34.04

191

42.77

231

51.44

271

60.06

311

68.64

351

77.18

391

85.70

32

7.52

72

16.57

112

25.46

152

34.26

192

42.98

232

51.65

272

60.27

312

68.85

352

77.40

392

85.91

33

7.75

73

16.79

113

25.68

153

34.48

193

43.20

233

51.87

273

60.49

313

69.07

353

77.61

393

86.12

34

7.98

74

17.02

114

25.90

154

34.70

194

43.42

234

52.08

274

60.70

314

69.28

354

77.82

394

86.33

35

8.21

75

17.24

115

26.12

155

34.91

195

43.63

235

52.30

275

60.92

315

69.49

355

78.04

395

86.55

36

8.44

76

17.46

116

26.34

156

35.13

196

43.85

236

52.52

276

61.13

316

69.71

356

78.25

396

86.76

37

8.67

77

17.69

117

26.57

157

35.35

197

44.07

237

52.73

277

61.35

317

69.92

357

78.46

397

86.97

38

8.89

78

17.91

118

26.79

158

35.57

198

44.29

238

52.95

278

61.56

318

70.14

358

78.68

398

87.18

39

9.12

79

18.13

119

27.01

159

35.79

199

44.50

239

53.16

279

61.78

319

70.35

359

78.89

399

87.40

40

9.35

80

18.36

120

27.23

160

36.01

200

44.72

240

53.38

280

61.99

320

70.56

360

79.10

400

87.61

 

Table 7. Acute Water Quality Standards for Dissolved Chromium III
Aquatic and Wildlife coldwater, warmwater and edw

 

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

Hard

mg/L

Std.

µg/L

1

13

41

275

81

479

121

666

161

842

201

1009

241

1171

281

1328

321

1481

361

1630

2

23

42

280

82

484

122

671

162

846

202

1013

242

1175

282

1332

322

1485

362

1634

3

32

43

285

83

489

123

675

163

850

203

1017

243

1179

283

1336

323

1488

363

1638

4

41

44

291

84

494

124

680

164

854

204

1022

244

1183

284

1340

324

1492

364

1641

5

49

45

296

85

499

125

684

165

859

205

1026

245

1187

285

1343

325

1496

365

1645

6

57

46

302

86

504

126

688

166

863

206

1030

246

1191

286

1347

326

1500

366

1649

7

65

47

307

87

508

127

693

167

867

207

1034

247

1195

287

1351

327

1504

367

1653

8

72

48

312

88

513

128

697

168

871

208

1038

248

1199

288

1355

328

1507

368

1656

9

79

49

318

89

518

129

702

169

876

209

1042

249

1203

289

1359

329

1511

369

1660

10

86

50

323

90

523

130

706

170

880

210

1046

250

1207

290

1363

330

1515

370

1664

11

93

51

328

91

527

131

711

171

884

211

1050

251

1211

291

1367

331

1519

371

1667

12

100

52

334

92

532

132

715

172

888

212

1054

252

1215

292

1370

332

1522

372

1671

13

107

53

339

93

537

133

720

173

893

213

1058

253

1219

293

1374

333

1526

373

1675

14

114

54

344

94

542

134

724

174

897

214

1062

254

1223

294

1378

334

1530

374

1678

15

120

55

349

95

546

135

729

175

901

215

1067

255

1226

295

1382

335

1534

375

1682

16

127

56

354

96

551

136

733

176

905

216

1071

256

1230

296

1386

336

1537

376

1686

17

133

57

360

97

556

137

737

177

909

217

1075

257

1234

297

1390

337

1541

377

1689

18

140

58

365

98

560

138

742

178

914

218

1079

258

1238

298

1393

338

1545

378

1693

19

146

59

370

99

565

139

746

179

918

219

1083

259

1242

299

1397

339

1549

379

1697

20

152

60

375

100

570

140

751

180

922

220

1087

260

1246

300

1401

340

1552

380

1700

21

159

61

380

101

574

141

755

181

926

221

1091

261

1250

301

1405

341

1556

381

1704

22

165

62

385

102

579

142

759

182

930

222

1095

262

1254

302

1409

342

1560

382

1708

23

171

63

390

103

584

143

764

183

935

223

1099

263

1258

303

1413

343

1564

383

1711

24

177

64

395

104

588

144

768

184

939

224

1103

264

1262

304

1416

344

1567

384

1715

25

183

65

400

105

593

145

772

185

943

225

1107

265

1266

305

1420

345

1571

385

1719

26

189

66

405

106

598

146

777

186

947

226

1111

266

1270

306

1424

346

1575

386

1722

27

195

67

410

107

602

147

781

187

951

227

1115

267

1274

307

1428

347

1578

387

1726

28

201

68

415

108

607

148

785

188

955

228

1119

268

1277

308

1432

348

1582

388

1730

29

207

69

420

109

611

149

790

189

960

229

1123

269

1281

309

1435

349

1586

389

1733

30

213

70

425

110

616

150

794

190

964

230

1127

270

1285

310

1439

350

1590

390

1737

31

218

71

430

111

621

151

799

191

968

231

1131

271

1289

311

1443

351

1593

391

1741

32

224

72

435

112

625

152

803

192

972

232

1135

272

1293

312

1447

352

1597

392

1744

33

230

73

440

113

630

153

807

193

976

233

1139

273

1297

313

1451

353

1601

393

1748

34

235

74

445

114

634

154

811

194

980

234

1143

274

1301

314

1454

354

1604

394

1751

35

241

75

450

115

639

155

816

195

985

235

1147

275

1305

315

1458

355

1608

395

1755

36

247

76

455

116

643

156

820

196

989

236

1151

276

1309

316

1462

356

1612

396

1759

37

252

77

460

117

648

157

824

197

993

237

1155

277

1312

317

1466

357

1616

397

1762

38

258

78

465

118

652

158

829

198

997

238

1159

278

1316

318

1470

358

1619

398

1766

39

263

79

470

119

657

159

833

199

1001

239

1163

279

1320

319

1473

359

1623

399

1770

40

269

80

475

120

662

160

837

200

1005

240

1167

280

1324

320

1477

360

1627

400

1773

 

Table 8. Chronic Water Quality Standards for Dissolved Chromium III
Aquatic and Wildlife coldwater, warmwater and edw

 

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

1

1.71

41

35.71

81

62.37

121

86.64

161

109.47

201

131.29

241

152.33

281

172.74

321

192.63

361

212.08

2

3.01

42

36.42

82

63.00

122

87.22

162

110.03

202

131.82

242

152.84

282

173.24

322

193.12

362

212.56

3

4.19

43

37.13

83

63.63

123

87.81

163

110.58

203

132.36

243

153.36

283

173.75

323

193.62

363

213.04

4

5.31

44

37.83

84

64.25

124

88.39

164

111.14

204

132.89

244

153.88

284

174.25

324

194.11

364

213.52

5

6.37

45

38.54

85

64.88

125

88.98

165

111.69

205

133.42

245

154.39

285

174.75

325

194.60

365

214.00

6

7.40

46

39.24

86

65.50

126

89.56

166

112.25

206

133.96

246

154.91

286

175.25

326

195.09

366

214.48

7

8.40

47

39.93

87

66.13

127

90.14

167

112.80

207

134.49

247

155.43

287

175.76

327

195.58

367

214.96

8

9.37

48

40.63

88

66.75

128

90.72

168

113.35

208

135.02

248

155.94

288

176.26

328

196.07

368

215.44

9

10.31

49

41.32

89

67.37

129

91.30

169

113.90

209

135.55

249

156.46

289

176.76

329

196.56

369

215.92

10

11.24

50

42.01

90

67.99

130

91.88

170

114.46

210

136.08

250

156.97

290

177.26

330

197.05

370

216.40

11

12.16

51

42.70

91

68.61

131

92.46

171

115.01

211

136.61

251

157.48

291

177.76

331

197.53

371

216.88

12

13.05

52

43.38

92

69.22

132

93.04

172

115.56

212

137.14

252

158.00

292

178.26

332

198.02

372

217.36

13

13.94

53

44.06

93

69.84

133

93.61

173

116.11

213

137.67

253

158.51

293

178.76

333

198.51

373

217.84

14

14.81

54

44.74

94

70.45

134

94.19

174

116.66

214

138.20

254

159.02

294

179.26

334

199.00

374

218.32

15

15.67

55

45.42

95

71.07

135

94.76

175

117.21

215

138.73

255

159.54

295

179.76

335

199.49

375

218.79

16

16.52

56

46.10

96

71.68

136

95.34

176

117.75

216

139.26

256

160.05

296

180.26

336

199.97

376

219.27

17

17.36

57

46.77

97

72.29

137

95.91

177

118.30

217

139.79

257

160.56

297

180.76

337

200.46

377

219.75

18

18.20

58

47.44

98

72.90

138

96.49

178

118.85

218

140.31

258

161.07

298

181.25

338

200.95

378

220.23

19

19.02

59

48.11

99

73.51

139

97.06

179

119.40

219

140.84

259

161.58

299

181.75

339

201.44

379

220.70

20

19.84

60

48.78

100

74.11

140

97.63

180

119.94

220

141.37

260

162.09

300

182.25

340

201.92

380

221.18

21

20.64

61

49.44

101

74.72

141

98.20

181

120.49

221

141.89

261

162.60

301

182.75

341

202.41

381

221.66

22

21.45

62

50.10

102

75.33

142

98.77

182

121.03

222

142.42

262

163.11

302

183.24

342

202.89

382

222.13

23

22.24

63

50.76

103

75.93

143

99.34

183

121.58

223

142.94

263

163.62

303

183.74

343

203.38

383

222.61

24

23.03

64

51.42

104

76.53

144

99.91

184

122.12

224

143.47

264

164.13

304

184.24

344

203.87

384

223.09

25

23.81

65

52.08

105

77.14

145

100.48

185

122.66

225

143.99

265

164.64

305

184.73

345

204.35

385

223.56

26

24.59

66

52.74

106

77.74

146

101.04

186

123.21

226

144.52

266

165.15

306

185.23

346

204.84

386

224.04

27

25.36

67

53.39

107

78.34

147

101.61

187

123.75

227

145.04

267

165.66

307

185.72

347

205.32

387

224.51

28

26.13

68

54.04

108

78.94

148

102.18

188

124.29

228

145.56

268

166.17

308

186.22

348

205.81

388

224.99

29

26.89

69

54.69

109

79.53

149

102.74

189

124.83

229

146.09

269

166.67

309

186.72

349

206.29

389

225.46

30

27.65

70

55.34

110

80.13

150

103.31

190

125.37

230

146.61

270

167.18

310

187.21

350

206.77

390

225.94

31

28.40

71

55.99

111

80.73

151

103.87

191

125.91

231

147.13

271

167.69

311

187.70

351

207.26

391

226.41

32

29.15

72

56.63

112

81.32

152

104.43

192

126.45

232

147.65

272

168.20

312

188.20

352

207.74

392

226.88

33

29.89

73

57.27

113

81.92

153

104.99

193

126.99

233

148.17

273

168.70

313

188.69

353

208.22

393

227.36

34

30.63

74

57.92

114

82.51

154

105.56

194

127.53

234

148.69

274

169.21

314

189.19

354

208.71

394

227.83

35

31.37

75

58.56

115

83.10

155

106.12

195

128.07

235

149.21

275

169.71

315

189.68

355

209.19

395

228.31

36

32.10

76

59.20

116

83.69

156

106.68

196

128.61

236

149.73

276

170.22

316

190.17

356

209.67

396

228.78

37

32.83

77

59.83

117

84.28

157

107.24

197

129.14

237

150.25

277

170.72

317

190.66

357

210.15

397

229.25

38

33.55

78

60.47

118

84.87

158

107.80

198

129.68

238

150.77

278

171.23

318

191.16

358

210.64

398

229.72

39

34.28

79

61.10

119

85.46

159

108.35

199

130.22

239

151.29

279

171.73

319

191.65

359

211.12

399

230.20

40

34.99

80

61.74

120

86.05

160

108.91

200

130.75

240

151.81

280

172.24

320

192.14

360

211.60

400

230.67

 

Table 9. Acute Water Quality Standards for Dissolved Chromium III
Aquatic and Wildlife ephemeral

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

1

44

41

921

81

1609

121

2235

161

2824

201

3386

241

3929

281

4456

321

4969

361

5470

2

78

42

939

82

1625

122

2250

162

2838

202

3400

242

3942

282

4469

322

4981

362

5483

3

108

43

958

83

1641

123

2265

163

2852

203

3414

243

3956

283

4481

323

4994

363

5495

4

137

44

976

84

1657

124

2280

164

2867

204

3428

244

3969

284

4494

324

5007

364

5507

5

164

45

994

85

1673

125

2295

165

2881

205

3441

245

3982

285

4507

325

5019

365

5520

6

191

46

1012

86

1690

126

2310

166

2895

206

3455

246

3996

286

4520

326

5032

366

5532

7

217

47

1030

87

1706

127

2325

167

2909

207

3469

247

4009

287

4533

327

5045

367

5545

8

242

48

1048

88

1722

128

2340

168

2924

208

3483

248

4022

288

4546

328

5057

368

5557

9

266

49

1066

89

1738

129

2355

169

2938

209

3496

249

4035

289

4559

329

5070

369

5569

10

290

50

1084

90

1754

130

2370

170

2952

210

3510

250

4049

290

4572

330

5082

370

5582

11

314

51

1101

91

1770

131

2385

171

2966

211

3524

251

4062

291

4585

331

5095

371

5594

12

337

52

1119

92

1785

132

2400

172

2981

212

3537

252

4075

292

4598

332

5108

372

5606

13

360

53

1137

93

1801

133

2415

173

2995

213

3551

253

4088

293

4611

333

5120

373

5619

14

382

54

1154

94

1817

134

2429

174

3009

214

3565

254

4102

294

4624

334

5133

374

5631

15

404

55

1172

95

1833

135

2444

175

3023

215

3578

255

4115

295

4637

335

5145

375

5643

16

426

56

1189

96

1849

136

2459

176

3037

216

3592

256

4128

296

4649

336

5158

376

5656

17

448

57

1206

97

1865

137

2474

177

3051

217

3606

257

4141

297

4662

337

5171

377

5668

18

469

58

1224

98

1880

138

2489

178

3066

218

3619

258

4155

298

4675

338

5183

378

5680

19

491

59

1241

99

1896

139

2503

179

3080

219

3633

259

4168

299

4688

339

5196

379

5693

20

512

60

1258

100

1912

140

2518

180

3094

220

3646

260

4181

300

4701

340

5208

380

5705

21

532

61

1275

101

1927

141

2533

181

3108

221

3660

261

4194

301

4714

341

5221

381

5717

22

553

62

1292

102

1943

142

2548

182

3122

222

3673

262

4207

302

4726

342

5233

382

5730

23

574

63

1309

103

1958

143

2562

183

3136

223

3687

263

4220

303

4739

343

5246

383

5742

24

594

64

1326

104

1974

144

2577

184

3150

224

3701

264

4234

304

4752

344

5258

384

5754

25

614

65

1343

105

1990

145

2592

185

3164

225

3714

265

4247

305

4765

345

5271

385

5766

26

634

66

1360

106

2005

146

2606

186

3178

226

3728

266

4260

306

4778

346

5283

386

5779

27

654

67

1377

107

2021

147

2621

187

3192

227

3741

267

4273

307

4790

347

5296

387

5791

28

674

68

1394

108

2036

148

2635

188

3206

228

3755

268

4286

308

4803

348

5308

388

5803

29

694

69

1411

109

2051

149

2650

189

3220

229

3768

269

4299

309

4816

349

5321

389

5815

30

713

70

1427

110

2067

150

2665

190

3234

230

3781

270

4312

310

4829

350

5333

390

5828

31

733

71

1444

111

2082

151

2679

191

3248

231

3795

271

4325

311

4841

351

5346

391

5840

32

752

72

1461

112

2098

152

2694

192

3262

232

3808

272

4338

312

4854

352

5358

392

5852

33

771

73

1477

113

2113

153

2708

193

3276

233

3822

273

4351

313

4867

353

5371

393

5864

34

790

74

1494

114

2128

154

2723

194

3289

234

3835

274

4364

314

4880

354

5383

394

5877

35

809

75

1510

115

2143

155

2737

195

3303

235

3849

275

4377

315

4892

355

5396

395

5889

36

828

76

1527

116

2159

156

2752

196

3317

236

3862

276

4390

316

4905

356

5408

396

5901

37

847

77

1543

117

2174

157

2766

197

3331

237

3875

277

4404

317

4918

357

5421

397

5913

38

865

78

1560

118

2189

158

2780

198

3345

238

3889

278

4417

318

4931

358

5433

398

5925

39

884

79

1576

119

2204

159

2795

199

3359

239

3902

279

4430

319

4943

359

5445

399

5938

40

903

80

1592

120

2220

160

2809

200

3372

240

3916

280

4443

320

4956

360

5458

400

5950

 

Table 10. Acute Water Quality Standards for Dissolved Copper
Aquatic and Wildlife coldwater, warmwater and edw

 

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

Hard.

mg/L

Std.

µg/L

1

0.18

41

5.80

81

11.02

121

16.08

161

21.05

201

25.94

241

30.78

281

35.57

321

40.33

361

45.05

2

0.34

42

5.93

82

11.15

122

16.21

162

21.17

202

26.07

242

30.90

282

35.69

322

40.45

362

45.16

3

0.49

43

6.07

83

11.28

123

16.33

163

21.30

203

26.19

243

31.02

283

35.81

323

40.56

363

45.28

4

0.65

44

6.20

84

11.40

124

16.46

164

21.42

204

26.31

244

31.14

284

35.93

324

40.68

364

45.40

5

0.80

45

6.33

85

11.53

125

16.58

165

21.54

205

26.43

245

31.26

285

36.05

325

40.80

365

45.52

6

0.95

46

6.47

86

11.66

126

16.71

166

21.66

206

26.55

246

31.38

286

36.17

326

40.92

366

45.63

7

1.10

47

6.60

87

11.79

127

16.83

167

21.79

207

26.67

247

31.50

287

36.29

327

41.04

367

45.75

8

1.24

48

6.73

88

11.91

128

16.96

168

21.91

208

26.79

248

31.62

288

36.41

328

41.16

368

45.87

9

1.39

49

6.86

89

12.04

129

17.08

169

22.03

209

26.92

249

31.74

289

36.53

329

41.27

369

45.99

10

1.54

50

6.99

90

12.17

130

17.21

170

22.16

210

27.04

250

31.86

290

36.65

330

41.39

370

46.10

11

1.68

51

7.13

91

12.30

131

17.33

171

22.28

211

27.16

251

31.98

291

36.77

331

41.51

371

46.22

12

1.82

52

7.26

92

12.42

132

17.46

172

22.40

212

27.28

252

32.10

292

36.89

332

41.63

372

46.34

13

1.97

53

7.39

93

12.55

133

17.58

173

22.52

213

27.40

253

32.22

293

37.00

333

41.75

373

46.46

14

2.11

54

7.52

94

12.68

134

17.71

174

22.65

214

27.52

254

32.34

294

37.12

334

41.86

374

46.57

15

2.25

55

7.65

95

12.81

135

17.83

175

22.77

215

27.64

255

32.46

295

37.24

335

41.98

375

46.69

16

2.39

56

7.78

96

12.93

136

17.96

176

22.89

216

27.76

256

32.58

296

37.36

336

42.10

376

46.81

17

2.53

57

7.91

97

13.06

137

18.08

177

23.02

217

27.89

257

32.70

297

37.48

337

42.22

377

46.92

18

2.67

58

8.04

98

13.19

138

18.20

178

23.14

218

28.01

258

32.82

298

37.60

338

42.34

378

47.04

19

2.81

59

8.17

99

13.31

139

18.33

179

23.26

219

28.13

259

32.94

299

37.72

339

42.45

379

47.16

20

2.95

60

8.31

100

13.44

140

18.45

180

23.38

220

28.25

260

33.06

300

37.84

340

42.57

380

47.28

21

3.09

61

8.44

101

13.57

141

18.58

181

23.50

221

28.37

261

33.18

301

37.96

341

42.69

381

47.39

22

3.23

62

8.57

102

13.69

142

18.70

182

23.63

222

28.49

262

33.30

302

38.07

342

42.81

382

47.51

23

3.37

63

8.70

103

13.82

143

18.82

183

23.75

223

28.61

263

33.42

303

38.19

343

42.93

383

47.63

24

3.50

64

8.83

104

13.95

144

18.95

184

23.87

224

28.73

264

33.54

304

38.31

344

43.04

384

47.74

25

3.64

65

8.96

105

14.07

145

19.07

185

23.99

225

28.85

265

33.66

305

38.43

345

43.16

385

47.86

26

3.78

66

9.09

106

14.20

146

19.20

186

24.12

226

28.97

266

33.78

306

38.55

346

43.28

386

47.98

27

3.91

67

9.22

107

14.32

147

19.32

187

24.24

227

29.09

267

33.90

307

38.67

347

43.40

387

48.10

28

4.05

68

9.34

108

14.45

148

19.44

188

24.36

228

29.22

268

34.02

308

38.79

348

43.52

388

48.21

29

4.19

69

9.47

109

14.58

149

19.57

189

24.48

229

29.34

269

34.14

309

38.91

349

43.63

389

48.33

30

4.32

70

9.60

110

14.70

150

19.69

190

24.60

230

29.46

270

34.26

310

39.02

350

43.75

390

48.45

31

4.46

71

9.73

111

14.83

151

19.82

191

24.73

231

29.58

271

34.38

311

39.14

351

43.87

391

48.56

32

4.59

72

9.86

112

14.95

152

19.94

192

24.85

232

29.70

272

34.50

312

39.26

352

43.99

392

48.68

33

4.73

73

9.99

113

15.08

153

20.06

193

24.97

233

29.82

273

34.62

313

39.38

353

44.10

393

48.80

34

4.86

74

10.12

114

15.20

154

20.19

194

25.09

234

29.94

274

34.74

314

39.50

354

44.22

394

48.92

35

5.00

75

10.25

115

15.33

155

20.31

195

25.21

235

30.06

275

34.86

315

39.62

355

44.34

395

49.03

36

5.13